ASME B16.11 Forged Fittings

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					                                                                             ASME-B16.11

                                                     ADOPTION   NOTICE
                 ASME-B16.11, "Fittings, Steel Forged, Socket-Welding and
                 Threaded," was adopted on October 3 , 1994 foru s e by the
                 Department of Defense (DoD). Proposed changes by DoD
                 activities must be submitted to the DoD Adopting Activity:
                 Commanding Officer, Naval Construction Battalion Center,
                 Code 156, 1000 23rd Avenue, Port Hueneme, CA 93043-4301.
                 DoD activities may obtain copies of this standard from the
                 Standardization Document Order Desk, 700 Robbins Avenue,
                 Building 4D, Philadelphia, PA 19111-5094. The private
                 sector and other Government agencies may purchase copies
                 from the American Society of Mechanical Engineers, 345 East
                 47th Street, New York, NY 10017.

                 Custodians:                                             Adopting Activity
                 Army - ME                                               Navy - YD-1
.                Navy - YD-1
                 Air Force - 99




                                                                                  FSC 4730
                 DISTRIBUTION STATEMENTA. Approved for public release;
                 distribution is unlimited.




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COPYRIGHT American Society of Mechanical Engineers
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                      The American Society of
                      Mechanical Engineers




            A                           L
          A N M E R I C A N A T I O N A S T A N D A R D




                             FORCED FITTINIS
                                    SOCKET-WELD IN^
                                                AND THREADED
                                                       ASME B16.11-1NU6
                                                     (Revision of ASME B1 8.11-1991)

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                                                       Date of Issuance: April 16, 1997




                      The 1996 edition of this Standard is being issued with an automatic addenda
                      subscription service.The use of an addenda allows revisionsmade in response
                      to publicreview comments or committee actions tobe published as necessary;
                      revisions published in addenda will become effective 6 months after the Date
                      of Issuance of the addenda. The next edition of this Standard is scheduled for
                      publication in 2001.

                      ASME issues written replies to inquiries concerning
                                                                        interpretationsof technical
                      aspects of this Standard. The interpretations will be included with the above
                      addenda service. Interpretations are not part of the addenda to the Standard.




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                                                  345 East 47th Street, New York, NY 10017


                                                         Copyright Q 1997 by
                                           THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
                                                          All Rights Reserved
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                                                              FOREWORD

                                              (This Foreword is not part of ASME 816.11-1996.)




                        The Sectional Committee on                                  Pipe
                                                        the Standardization of Flanges          and         Fittings, B16,
                     organized in 1920 under the procedure of the          American Standards Association (ASA)
                     appointed a subgroup of Subcommittee No. 3 (now Subcommittee F) to initiate the
                     standardization of welding fittings in May, 1937. The first meeting of this group washeld
                     later that month, and at its meeting in December, 1938, in New York,itwas                   agreed to
                     undertake the standardization of dimensions of socket-welding fittings           and to refer this
                     project to a new drafting subgroup. One of themostimportant dimensions of this type of
                     fitting requiring standardization was considered to be the dimension from the centerline of
                     the fitting to the bottom of the socket, since from the stand-point of the designing engineer,
                     thisdimension governs thelocation of adjacent pipe with reference to the entire piping
                     layout. Another importantitem for consideration was the weldingfillet dimensions.
                        The drafting subgroup held meetings in Chicago, Detroit, and New York in March, 1939,
                     andMayand          October, 1940, respectively, and at the lastnamedmeeting            the completed
                     draft of theproposedstandardwas          discussed and further revisions weresuggested.When
                     applied to the September, 1940, draft, these changes producedtheMay, 1941, draft which
                      wasprepared for distribution to industry for criticism and comment.
                         This distribution resulted in a number of helpful comments. The members of the subgroup
                     agreed by mail thatmanyof the changes suggestedshouldbe incorporated intherevised
                      draft (December, 1941). Progress on theapproval of the standard wasdelayed by the war
                      after which a few more changes were added to make the proposal acceptable to all concerned.
                      The revised draft (April, 1946) was then submitted to the members of the sectional committee
                      for letter ballotvote.
                         Following the approval of the     sectional committee, the      proposed standard was       next
                      approved by the sponsor bodies, and presented to the ASA with recommendation for approval
                      as an American Standard. This designation was givenonDecember 9, 1946.
                         In 1960, it wasagreedthat the standardneeded a complete revisionand simultaneously
                      that it should be expanded     to cover threaded fittings and plugs, then      covered byMSSSP-
                      49 and SP-50. A TaskForceworked             diligently for four yearsbefore aniving at a draft
                      whichit felt was acceptable. They also found thatratingswere                outdated and eliminated
                      the 4000 lb classes of threaded fittings, assigned pressure-temperature ratings for a number
                      of materials, and converted the socket weld fitting ratings to 3000 and 6000 lb. Following
                      approval by the Sectional Committee and Sponsors, ASA approval was granted on January
                      28, 1966.
                         Following designation changesofASA to ANSIand Sectional Committee to Standards
                      Committee, Subcommittee No. 6 began consideration of changes in 1969. Early in 1972,
                                                                                   and
                      changes in the pressure class designations, materials, clarification               of wording  were
                      agreed upon and submitted for approval. This approachwas granted on June 20, 1973.
                         The work                         the
                                     of development of 1980             edition of B16.11 began in         1975 when the
                      committee began consideration of comments and proposals for change, whichhadbeen
                      received. The development procedure was arduous inthat a number of ballotsweretaken
                      which elicited many additional comments and counter proposals. The major changes included


                                                                       iii



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                   an expanded scope for better definition, requirements for conformance marking, a nonmanda-
                   tory annex with provisions for proof or burst testing and the inclusion of metric equivalents.
                   Following approval by the Standards Committee and Co-Secretariat, final approval by ANSI
                   was granted on October 6, 1980.
                      In 1982, American National Standards Committee B16 was reorganized as an ASME
                   Committee operating under procedures accredited by ANSI. The 1991 edition of the standard,
                   re-titled ‘‘Forged Fittings, Socket-Welding and Threaded,” incorporated forging material
                   listed in Table 1 of ASME/ANSI B16.34-1988, including Group 3 material which wasnot
                   previously covered in B16.11. The 1991 edition established U.S. customary units as the
                   standard. Other clarifying and editorial revisions were made in order to improve the text.
                   Following approval by the Standards Committee andASME,final approval by ANSI was
                   granted on March 4, 1991.
                      In this 1996 Edition, metric dimensions were added as an independent but equal standard
                   to the inch units. Following approval by the Standards Committee and ASME, this revision
                   to the 1991 edition of this Standard was approved as an American National Standard by
                   ANSIon December 16, 1996, withthenew             designation ASMEB16.11-1996.
                      All requests for interpretations or suggestions for revisions should be sent to the Secretary,
                   BI6 Committee, The American Society of Mechanical Engineers, United Engineering Center,
                   345 East 47th Street, NewYork, NY 10017.




                                                                  iv



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                                                                    ~                  ~




              S T D - A S M E B L b - 3 3 - E N G L L77b            0757b70 0580327 7L10




                                             ASME B16 COMMITTEE
                    Standardization of Valves, Flanges, Fittings, Gaskets, and Valve Actuators

                             (The following is a roster of the Committee at the time of approval of this Standard.)



                                                                    OFFICERS
                                                                W. N. McLean, Chair
                                                              R. A. Schmidt, Vice Chair
                                                               K. M. Ciciora, Secretary


                          COMMITTEE PERSONNEL
                          W. L. Ballis, Columbia Gas Distribution Co., Columbus, Ohio
                          R. R. Brodin, Fisher Controls International, Inc., Marshalltown, Iowa
                          M. A. Clark, Nibco Inc., Elkhart, Indiana
                          A. Cohen, Copper Development Association, Inc., New York, New York
                          W. C. Farrell, Jr., Consultant, Birmingham, Alabama
                          C. E. Floren, Mueller Co., Decatur, Illinois
                          D. R. Frikken, Monsanto Co., St. Louis, Missouri
                          M. W. Garland, Frick Co., Waynesboro, Pennsylvania
                          J. C. Inch, Mueller Refrigeration Products Co., Hartsville, Tennessee
                          G. A. Jolly, Vogt Valve Co., Louisville, Kentucky
                          W. G. Knecht, Consultant, Williamsport, Pennsylvania
                          R. A. Koester, The William Powell Co., Cincinnati, Ohio
                          W. N. McLean, Newco Valve Co., Palos Park, Illinois
                          M. L. NaWar, Bechtel Corp., Gaithersburg, Maryland
                          R. A. Schmidt, Ladish Co., Russellville, Arkansas
                          W. M. Stephan, Flexitallic, Inc., Pennsauken, New Jersey
                          T. F. Stroud, Ductile Iron Research Association, Birmingham, Alabama
                          M. D. Wasicek, ABS Americas, Houston, Texas
                          R. E. White, Richard E. White Er Associates, South Bend, Indiana
                           D. A. Williams, Southern Company Services, Birmingham, Illinois
                           L. A. Willis, Dow Chemical Co., Freeport, Texas
                          W. R. Worley, Union Carbide Corp., South Charleston, West Virginia




                           PERSONNEL OF SUBCOMMITTEE F                   - STEEL THREADED AND WELDING
                           FITTINGS
                           G. A. Jolly, Chair, Vogt Valve Co., Louisville, Kentucky
                           Umberto D'Urso, Secretary, ASME, New York, New York
                           P. R. Benavides, Tube Forgings of America, Portland, Oregon
                           G. A. Cuccio, Capitol Manufacturing Co., Crowley, Louisiana
                           D. R. Frikken, Monsanto Co., St. Louis, Missouri
                           R. E. Johnson, Consultant, Gibsonia, Pennsylvania
                           R. C. Lafferty, Pennsylvania Machine Works, Aston, Pennsylvania
                           D. H. Monroe, Consultant, Birmingham, Alabama
                           D. W. Muir, Canvil Limited, Simcoe, Ontario, Canada
                           R. A. Schmidt, Ladish Co., Russellville, Arkansas
                           L. A. Willis, Dow Chemical Co., Freeport, Texas




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                                                                                   CONTENTS



                    Foreword .......................................................................                                                              iii
                    Standard Committee Roster ......................................................                                                               V



                        1           Scope .................................................................
                        2           Pressure Ratings .......................................................
                        3           Size and Type ........................................................
                        4           Marking ..............................................................
                        5           Material ..............................................................
                        6           Dimensions ...........................................................
                        7           Tolerances ............................................................
                        8           Testing ...............................................................

                     Figures
                        1           Method of Designating Outlets ofReducing Tees and Crosses ...........                                                          3
                        2           Welding Gap andMinimum Flat      Dimensions for Socket-Welding
                                     Fittings .............................................................                                                        5


                     Tables
                       1A   Types of Fittings by Class Designation andDN (Nominal Size)
                              Range ..............................................................                                                                 2
                       1B   Types of Fittings by Class Designation and NPS Size Range ............                                                                 2
                       2    Correlation of Fittings Class With Schedule Number or Wall
                              Designation of Pipe for Calculation of Ratings ........................                                                               3
                       3    Nominal Wall Thickness of Schedule 160 andDoubleExtra
                              Strong Pipe .........................................................
                            Socket-Welding Fittings ................................................
                            Forged Threaded Fittings ..............................................
                            Threaded Fittings ......................................................
                            Plugs and Bushings ....................................................

                     Annexes
                       A     Inch Tables ...........................................................                                                               11
                      B     Method for Burst Testing Fittings ......................................                                                              17
                       C     Quality System Program ...............................................                                                               19
                      D      References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   21




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             S T D - A S M E B L b - 1 3 - E N G L 377b             C1757b70 0580327 733


                                                                                                                ASME 616.11-1996




                                 FORGED FITTINGS, SOCKET-WELDING AND THREADED



          1 SCOPE                                                         material at low temperature, or provisions for operation
                                                                          at a pressure exceeding the ratings in thisStandard.
          1.1 General
            This Standard covers ratings, dimensions, tolerances,         1.3ServiceConditions
          markingandmaterial requirements for forged fittings,
                                                                            Criteria for selection offittingtypesandmaterials
          both socket-welding and threaded, as illustrated in
                                                                          suitable for particular fluid service are notwithinthe
          Tables 4 through 7 and A4 throughA7,inclusive.
                                                                          scope of thisStandard.
             1.1.1 Fitting TypesKonfiguration. Types offit-
          tings coveredbythis   Standard are shown in Tables              1.4 Welding
          1A and lB, by class and size range. Fittings shown                Installation welding requirements are not within the
          in Tables 4 through 7 and A4 through A7may also                 scope of thisStandard. Installation welding shall be
          be made with     combinations of socket-welding and             done in accordance with q e applicable piping Code
          threaded ends.                                                  or regulation covering the piping system into which
             1.1.2 Partial Compliance Fittings. Fittings with             the fittings are installed.
          special dimensions, threads or counterbores, and fittings
          made from nonstandard materials may made be by                  1.5 Standard Units
          agreement between the manufacturer and the purchaser              The values stated in either metric units or inch units
          (see para. 5.2). When such fittings meet all other              are to beregardedseparately as standard.Withinthe
          stipulations of this Standard, they shall be considered             the
                                                                          text, inch      units are shown in parentheses. The
          in partial compliance therewith, provided they are appro-       values stated in each system are not exact equivalents;
          priatelymarked(seepara.     4).                                 therefore, each system must be used independently of
                                                                          the other. Combining values from the two systems may
             1.1.3 Quality Systems. Nonmandatory require-                 result innonconformance with the standard.
           ments relating to the productmanufacturer’s Quality               Tables 4 through 7 show fittings dimensional require-
           System Program are described inAnnex C.                        ments in millimeters. Tables A4 through A7 show the
                                                                          dimensional requirements for inch dimensioned fittings.
           1.2 References
              1.2.1 Referenced Standards. Standards and spec-             2 PRESSURE RATINGS
           ifications
                    adoptedby      reference in this Standard     are
                                                                          2.1 General
           shown in Annex D, which is part of this Standard. It
           is not considered practical to identify the specific edition      These fittings shall be designated as Class 2000,
           of each standard and specification in the individual           3000, and 6000 for threaded end       and
                                                                                                         fittings         Class
           references. Instead, the specific edition reference is          3000, 6000, and 9000 for socket-weldendfittings.
           identified in Annex D. A fitting made in conformance
           and conforming to this Standard, in all other respects,            2.1.1 Basis of Rating. The schedule of pipe corres-
           will be considered to be in conformance to the Standard,        ponding to each Class of fitting for rating purposes is
           even thoughthe edition reference may be changedin               shown in Table 2. Design temperature and other service
           a subsequent addendum to or revision of the Standard.           conditions shall be limited as provided by the applicable
                                                                           piping codeor regulation for the material ofconstruction
              1.2.2 Codes and Regulations. A fitting used un-              of the fitting. Within these limits the maximum allow-
           der the jurisdiction of the ASME Boiler and Pressure            able pressure of a fittingshallbethatcomputed         for
           Vessel Code, the ASME Code for Pressure Piping, or              straight seamless pipe of equivalent material (as shown
           a governmental regulation is subject to any limitation          by comparison of composition and mechanical proper-
           of that code or regulation. This includes any maximum           ties in the respective material specifications). The wall
           temperature limitation, or rulegoverning the use of a           thickness used in such computation shall be that tabu-




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                  STD-ASME BLb.3L-ENGL                      379b                      0759670 0580330 435

                                                                                                                               FORGED FIlTINGS,
         ASME 916.11-1996                                                                                         SOCKET-WELDING AND THREADED


             TABLE 1A TYPES OF            FITTINGS BY CLASS DESIGNATION AND DN (NOMINAL SIZE)RANGE
                                                        Socket-Weld                                                         Threaded
                                                      Class Designation                                             Class Designation
                  Description               3000                6000                   9000               2000                3000          6Ooo

           45 deg., 90 deg. Elbows       DN6-DN100                                                                                 DN6-DN100       DN6-DN100   DN
           Tees, Crosses                 DN6-DNlOO                                                      DN6-DN100      DN6-DN100   DN6-DNIDO
                                                                                                                      DN15-ON50 DN6-DN50
                                         DN6-DN100 Coupling, Half-Coupling
                                                      DN6-DN50         DN15-DN50                           ...                     DN6-DN100       DN6-DN100
           Cap                           DN6-DN100    DN6-DNIOO        DN15-DN50                           ...         DN6-DN100   DN6-DN100
           Square, Hex, Round Plug           ...                    ...                 ...                      DN6-DNIOO [See Note (I)]
           Hex and Flush Bushing             ...                    ...                 ...                      DN6-DN100 [See Note (I)]

         NOTE:
         (1) Plugs and bushings are not identified by Class Designation. They may be used for ratings up through Class 6000 designation.




                                TABLE 1 8       TYPES OF FITTINGS BY CLASS DESIGNATION AND
                                                          NPS SIZE RANGE
                                                        I                 Socket-Weld               I            Threaded
                                                                        Class Designation                   Class Designation
                                  Description               3000              6000        9000           2000       3000        6000

                            45 deg., 90 deg. Elbows         78-4              '18-2       1/24!          54/
                                                                                                           8        18
                                                                                                                     /4         Y04
                            Tees, Crosses                   18
                                                             /4               y8-2        72-2           'h-4       '/8-4        Va-4
                            Coupling, Half-Coupling         y0-4              v8-2        1/2-2          ...        78-4         78-4
                            Cap                             78-4              78-4        1/22           ...        78-4         78-4
                            Square, Hex, Round Plug         ...               ...             ...           '/s-4 [See Note (I)]
                            Hex and Flush Bushing           a   .   .         ...             ...           78-4 [See Note (I)]

                        NOTE:
                        (1) Plugs and bushings are not identified by Class Designation. They may be used for ratings up
                           through Class 6000 designation.




         lated inANSUASME B36.10M for the size and applica-                           2.2 Pressure Test Capability
         ble schedule of pipe reduced by applicable manufactur-
         ingtolerances other
                     and allowances threaded
                                      (e.g.,                                             Pressure testing is not required by this Standard but
                                                                                      the fittings shall be capable of withstanding a hydrostatic
         allowances).
                                                                                      testpressurerequired     by theapplicablepipingcode
            Any corrosion allowance and any variation in allow-
                                                                                      for seamless pipe of material equivalent to the fitting
         able stress due to temperature or other design shall be
                                                                                      forging and of the schedule or wall thickness correlated
         applied t thepipeandfittingalike.
                   o
                                                                                      withthefittingClassandendconnectionof           Table 2.
           2.1.2 Nonstandard Pipe Wall Thickness. Since
         ANSUASME B36.10M does not include Schedule 160
         norDoubleExtraStrongthicknessforDN6,          8, and
         10 (NPS 98,    x,  and 3/8), thevaluesinTable
         beusedasthenominalwallthicknessesofthepipe
                                                       3 may

         for rating purposes.                                                         3 SIZE AND TYPE

            2.1.3 Combination End Fittings. TheClassfor                                 General
                                                                                      3.1
         fittings made with combinations of socket-welding and                           The following table shows nominal pipe size ( W S )
         threaded ends shall be based on the end configuration                        used for inch dimensioned fittings versus nominal diam-
         thathasthelowestratingfromTable            2.                                eter (DN), usedformillimeterdimensionedfittings.

                                                                               2




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          FORGED FITTINGS,
          SOCKET-WELDING AND THREADED                                                                                              ASME 816.11-1996


                                                                                  TABLE 2 CORRELATION  OF FllTlNGS
                               NPS VERSUS DN                                    CLASS WITH SCHEDULE NUMBER OR WALL
                                                                                 DESIGNATION OF PIPEFOR CALCULATION
                                                                                              OF RATINGS
                                                                                                                            Pipe Used For Rating
                                           I         I            I
                                                                                                                               Basis [Note (I)]
                                                                                    Class
                                                                                 Designation                               Schedule           Wall
                                                                                  of Fitting       Type of Fitting           No.           Designation
           W S      194        15;     2       292            3        4
           DN       32         40     50       65         80          100           2000           Threaded                   80                 xs
                                                                                    3000           Threaded                  160                 ...
                                                                                    6000           Threaded                  ...                 xxs

          3.2 Reducing Fitting Size
                                                                                     3000          Socket-Welding             80                 xs
                                                                                     6000          Socket-Welding            160                 ...
             In the case of reducing tees and crosses, the size                      9000          Socket-Welding            ..,                 xxs
          of the largest run opening shall be given first, followed             NOTE:
          by the size of the opening at the opposite end of the                 (1) This table is not intended restrict the use of pipe of thinner
                                                                                                                to
          run. Where the fitting is a tee, the size of the branch                   or thicker wall with fittings. Pipe actually usedmay be thin-
                                                                                    ner or thicker in nominal wall than that shown in Table 2.
          is given last. Where the fitting is a cross, the largest                  Whenthinnerpipeisused,itsstrengthmaygovernthe
          side-outlet is the third dimension given, followed by                     rating.Whenthickerpipe         isused     for
                                                                                                                         (e.g., mechanical
          the opening opposite. The line sketches, Fig. 1, illustrate               strength), the strength of the fitting governs the rating.
          how the reducing fittings are read.



          4 MARKING                                                              TABLE 3 NOMINAL WALL THICKNESSOF
                                                                                   SCHEDULE 160 AND DOUBLEEXTRA
          4.1 General                                                                       STRONG PIPE
             Eachfitting shall bepermanentlymarkedwith          the                                      Schedule 160                       xxs
                                 by
          required identification raised       lettering and/or by                DN        NPS         mm           in.            mm            in.
          stamping, electro-etching, or vibro-to01 marking on the                                              I                             I
                                                                                             1
                        raised
          collar portion, pad         or raised boss portion
                                                           of
                                                            the                     6        18         3.15         0.124          4.83          0.190
                                                be
          forging. Cylindrical fittings shall marked         on the                 8        ‘14        3.68         0.145          6.05          0.238
                                                                                             3
                                                                                   10         18        4.01         0.158          6.40          0.252
          O.D. or on the endof the fitting in a locationsuch
          that the marking will not be obliterated as a result of


                                                                                welding installation. The marking of bushings and plugs
                                                                                is not required by this Standard.




                t     (1114)
                         32
                                                         40
                                                     (1112J
                                                                                   4.1.1 Specific Marking. The marking shall include
                                                                                (but is not limited to) thefollowing:
                                                                                   ( a ) Manufacturer’s Name or Trademark
                                                                                   (b) Material Zdentrjîcarion. Materialshall be identi-
                                                                                fied in accordance withthemarking
                                                                                either the appropriate ASTM    Fittings
                                                                                                                         requirements of
                                                                                                                           Specifications
                                                                                A 234, A 403, A 420, or B 366, or the appropriate
                                                                                ASTM     Forging Specifications A 105, A 182, A 350
                                                                                B 160, B 164, or other applicable forging Specification
                                                                                of Table I , ASME/ANSI B 16.34 (see para. 5.1).
             1
          FIG.      METHOD OF DESIGNATING OUTLETS                                  (c) Product Cotzfonncrnce. Fittings covered  under
                 OF REDUCING TEES AND CROSSES                                   para. 1.I. 1 shall be marked  with either the   ASTM
                          (See para. 3.2)                                       FittingsSpecificationmaterialidentification        (e.g.,

                                                                            3



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                 STD-ASME B L b = L L - E N G L 377b H 0 7 5 9 b 7 0 0580332 208 W

                                                                                                               FORGED FIlTlNGS,
         ASME B16.11-1996                                                                         SOCKET-WELDING AND THREADED

            W ”
         “ - ) or the symbol “B16” to denote confor-                         Socket
                                                                           6.2    Fittings
         mance to this Standard.
           Partial compliance fittings covered in para.   1.1.2              6.2.1 Body Wall Thickness. The body wall thick-
         marked
             with
             ASTM                                 (A
                                forging identification     105,            ness Of socket-welding                be equal     Or
         A 182, A 350, etc.) shall not be markedB16.                       greater than the values, G, shown in Tables 4 and A4.
           Partial compliance fittings covered in para, 1.1.2                 6.2.2Socket Wall Thickness. The socket wall
         marked with ASTMFitting Specification (A 234, A 403,              average thickness and minimum thickness shall be no
         A 420, andB366) shall be marked with the number                   less than the corresponding values, C, shown in Tables
         of the applicable ASTM Specification Supplementary                4and A4.
         Requirement covering special or nonstandard fittings.
            (d) Class Designation. 2000, 3000, 6000, or 9O00,                6.2.3 Socket Position. The fixed position for the
         as applicable. Alternatively, the designation 2M, 3M,             bottom of the socket with reference to the centerline
         6M, or 9M, as applicable, may be used where M stands              of the socket-welding fitting shall be maintained as
         for 1000.                                                         required by the dimensions, A, of Tables 4 and A4.
            (e) Size. The nominal pipe size related to the end             For reducing fittings, see para. 6.5.
         connections.
                                                                              6.2.4 Socket Depth. The socket depth shall be no
           4.1.2Omission of Markings. Where size and                       less than the minimum values, J, shown in Tables 4
         shape of fittings do not permit all of the above markings,        andA4.
         theymaybe omitted in the reverse order given above.                  6.2.5SocketBore. The inside surface of the socket
                                                                           bore shall presenta good workmanlike finish that is
                                                                           free of burrs.
                                                                             6.2.6Perpendicularity. The end flats of socket-
         5MATERIAL                                                         welding fittingsshall be at right angles to the socket axis.
         5.1Standard      Materials                                          6.2.7 Width. The forging radius shall not reduce
            The material for fittings shall consist of forgings,                   of
                                                                           the width the   flat welding surface to less than the
         bars, seamless pipe, or tubular products whichconform             value shown in Kg. 2.
         to the requirements for melting process, chemical com-
         position requirements, andmechanical       require-
                                             property                      6.3ThreadedFittings
         ments of the forging product form listed in Table 1,
         ASME B 16.34, including notes.                                      6.3.1 Wall Thickness. The body or end wall thick-
                                                                           ness of threaded fittings shall be equal toor greater
                                                                           thantheminimumvalues,       G, as shown in Tables 5,
         5.2 Nonstandard Materials                                         A5, or A6.
           When fittings made of other materials reference this               6.3.2 Internal Threading. All fittings with internal
         Standard for nonstandard coverage, they      should     be        threads shall be threaded with American National Stan-
         marked as agreed upon by manufacturer and purchaser,              dard Taper Pipe Threads (ANSUASME B1.20.1). Varia-
         and shall not include the identification specifiedin paras.       tions in threading shall be limited to one turn large
         4.1.l(b) and 4.1.1(c) of this Standard (seeAnnex B).              or one turn small from the gaging notch when using
                                                                           working gages. The reference point for gaging is the
                                                                           starting end of the fitting, providing the chamfer does
                                                                           not exceed themajor diameter of the internal thread.
                                                                           Whena chamfer on the internal thread exceeds this
         6 DIMENSIONS                                                      limit, the reference point becomes the last thread scratch
         6.1 General                                                       on the chamfer cone.
            Unless otherwise noted,the dimensions for socket-                 6.3.3 External   Threads. All externally threaded
         welding       given
                fittings                    and and
                                in Tables 4 A4 the                         fittings shall be threaded with American National Stan-
         dimensions for threaded fittings given in Tables 5, 6,            dard Taper Pipe Threads (ANWASME B1.20.1) and
         7, A5, A6, andA7arenominalvaluesand         subject to            the variation in threading shall be limited to one turn
         thedesignated manufacturing tolerance.                            large or one turn small from the gage face of ring

                                                                       4




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          FORGED FITTINGS,
          SOCKET-WELDING AND THREADED                                                                            ASME 816.11-1996




                                                                                     Approx. 1.5 mm (0.06 in.)
                                                                                      recommended gap
                                                                                      before welding
                                  Minimum flat = 0.75 x minimum
                                   socket wail thickness given ln
                                   Tables 4 and A4 (See para. 6.2.7)




                        FIG. 2 WELDING GAP AND MINIMUM FLAT DIMENSIONS FORSOCKET-
                                             WELDING FllTlNGS



          whenusing working gages. The reference point for                 diameters as the uniform size fitting corresponding to
          gaging is the end of the thread.                                 the largest size end connection of the reducing fitting.

             6.3.4 Countersink or Chamfer.Allinternal                      7 TOLERANCES
          threads shall be countersunk a distance not less than
          one-half the pitch of the thread at an angle of approxi-         7.1 Additional Tolerances
          mately 45 deg. with the axis of thethread,andall
                                                                              Tolerances in addition to thoselisted   in Tables 4,
          external threads shall be chamfered at an angle of 30
                                                                           5 , 6, 7, A4,A5, A6, and AÍ’.
          deg. to 45 deg. from the axis, for the purpose of easier
          entrance inmaking a joint and for protection ofthe                  7.1.1 Concentricity of Bores. The socket     and
          thread. Countersinking and chamfering shall be concen-           fittingboresshall be concentric within a toleranceof
          tric with the threads. The lengthofthreadsspecified              0.8 mm (0.03 in.) for all sizes. Opposite socket bores
          in all tables shall be measured to include the countersink       shall be concentric within a tolerance of 1.5 mm (0.06
          or chamfer.                                                      in.) forallsizes.
                                                                              7.1.2 Coincidence of Axes. The maximum allow-
                                                                           able variation in the alignment of thefittingbore and
          6.4 Collars                                                      socket bore axes shall be 1.0 mm in 200 mm (0.06 in.
             End collars of both socket-welding and threaded               in 1 ft). The maximum allowable variation in alignment
          fittings shall be such that they overlap the crotch area         of threads shall be 1.0 mm in 200 mm (0.06 in. in 1 ft).
          as illustrated in the sketches in Tables 4, A4, and A5.
                                                                           8 TESTING

          6.5ReducingFittings                                              8.1 Proof Testing
            Reducing fittings shall have the same center-to-end,              Proof testing for fittings made from standard materials
          center-to-bottom of socket, band diameter, and outside           isnot required by this Standard.




                                                                       5



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                                                                                                                                               C

                                                                                                                                                                        8          C




                                                                                                                                                                                   J

                       90 deg. Elbow                           Cross                                      Tee                  45 deg. Elbow                     Coupling                   Hslf-Coupling                               COP


                -                                                                              TABLE 4 SOCKET-WELDINGFITTINGS
                                      Bore Diameter of
                                        Fittings (2)                 Socket Wall Thickness (1)                  Body Well                                                                                                                         End Wall
                                              D                                 C                                  G                                  Center to Bottom of Socket       -A                                                         Thickness
                                                                                                                                                                                                                                                      h.

                           Socket
                                          Class
                                        Designation                     Class Designation

                                                             t- -T- -r- - - - -
                                                                                                                  Class
                                                                                                                Designation                I      W Elbows,
                                                                                                                                               Tees, Crosses
                                                                                                                                                   and                  I      450 Elbow             Layinn Lengths
                                                                                                                                                                                                       . -                  Toirrances
                                                                                                                                                                                                                            -            * Class Deria tion
                                                                                                                                                                                                                                           -           -
                            Bore                                   woo
                                                                3000
                                                                          - - -                            3000    Bo00
                                                                                                                                    M
                                                                                                                            9000 bcket
                                                                                                                                           I

                                                                                                                                                         --
                                                                                                                                                                        I

                                                                                                                                                             Mass Designation
                                                                                                                                                                                   -
                                                                                                                                                                                                 t           l- :ouplingr
                                                                                                                                                                                                                  Hall


                -
                DN
                           Dia. (2)

                           -  B       3000    5 0 0 0 9000
                                                             - - Avo. Min.
                                                             4ve.
                                                               Min.
                                                                    --                     4ve.
                                                                                                   - - Min. Min.
                                                                                                     Min.
                                                                                                   Min.
                                                                                                          --
                                                                                                                                     J -
                                                                                                                                    Min. 3000 W O go00
                                                                                                                                               O
                                                                                                                                                                 ----              6000
                                                                                                                                                                                          -
                                                                                                                                                                                          B500
                                                                                                                                                                                                 :ouplingr
                                                                                                                                                                                                    E              F
                                                                                                                                                                                                                            -
                                                                                                                                                                                                                            A     E      F     30oo
                                                                                                                                                                                                                                                        -
                                                                                                                                                                                                                                                      - moo          I
                             11.2      7.6     4.8
                  6                                          3.18    3.18   3.96    3.43                   2.41    3.1 5            9.5         11.0      11.0               8.0    8.0              6.5          16.0      1.o   1.5    1.0    4.8   6.4
                             10.8      6.1     3.2
                             14.6     10.0     7.1
                  8
                             14.2
                                                             3.78    3.30   4.60    4.01                   3.02    3.68             9.5         11.0      13.5               8.0    8.0              6.5          16.0      1.o   1.5    1.0    4.8   6.4
                                       8.5     5.6
                             18.0     13.3     9.9
                 10                                          4.01    3.50   5.03    4.37                   3.20    4.01             9.5         13.5      15.5               8.0   11.0              6.5          17.5      1.5   3.0    1.5    4.8   6.4
                             17.6     11.8     8.4
                             22.2     16.6    12.5    7.2
                 15                                          4.67    4.09   5.97    5.18    9.35   8.1E    3.73    4.78     7.47    9.5         15.5      19.0   25.5       11.0   12.5   15.5       9.5          22.5      1.5   3.0    1.5    6.4   7.9    11.2
                             21.8     15.0    11.0    5.6

                             27.6     21.7    16.3   11.8
                 20                                          4.90    4.27   6.96    6.04    9.78   8.5E    3.91    5.56     7.82    12.5        19.0     22.5    28.5       13.0   14.0   19.0       9.5          24.0      1.5   3.0    1.5    6.4   7.9    12.7
                             27.2     20.2    14.8   10.3
                             34.3     27.4    21.5   16.0
                 25                                          5.69    4.98   7.92    6.93   11.38   9.9E    4.55    6.35     9.09    12.5        22.5      27.0   32.0       14.0   17.5   20.5       12.5         28.5      2.0   4.0    2.0    9.6   11.2    14.2
                             33.9     25.9    19.9   14.4
                             43.1     35.8    30.2   23.5
                 32                                          6.07    5.28   7.92    6.93   12.14   0.61    4.85    6.35     9.70    12.5       '27.0      32.0   35.0       17.5   20.5   22.5       12.5         30.0      2.0   4.0    2.0    9.6   11.2    14.2
                             42.7     34.3    28.7   22.0
                             49.2     41.6    34.7   28.7
                 40                                          6.35    5.54   8.92    7.80   12.70   1.11    5.08    7.14     10.15   12.5        32.0      38.0   38.0       20.5   25.5   25.5       12.5         32.0      2.0   4.0    2.0   11.2   12.7    15.7
                             48.8     40.1    33.2   27.2

                             61.7      53.3   43.6   38.9
                 50                                          6.93    6.04   10.92   9.50   13.84   2.12    5.54    8.74     11.07   16.0        38.0      41.0   54.0       25.5   28.5   28.5       19.0         41.0      2.0   4.0    2.0   12.7   15.7    19.0
                             61.2      51.7   42.1   37.4
                             74.4      64.2
                 65                                          8.76    7.67                                  7.01                     16.0       41.0                         28.5                     19.0         43.0      2.5   5.0    2.5   15.7   19.0
                             73.9      61.2
                             90.3      79.4
                 80                                          9.52    8.30                                  7.62                     16.0 57.0                               32.0                     19.0         44.5      2.5   5.0    2.5   19.0   22.4
                             89.8      76.4
                            115.7     103.8
                                                                                                                                                                                                                                               --
                 1O0                                         10.69   9.35                                  8.56                     19.0        66.5                        41.0                     19.0         48.0      2.5   5.0    2.5   22.4   28.4
                -           115.2
                                      -
                                      100.7
                                                             --                                            -                                                                _I                                              -
                GENERAL NOTE: Dimensions are in millimeters.
                NOTES:
                (1) Average of Socket Wall Thickness around periphery shall be no less than listed values. The minimum values are permitted in localized areas.
                (2)Upper and lower values for each size are the respective maximum and minimum dimensions.




COPYRIGHT American Society of Mechanical Engineers
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          FORGED FITTINGS,
          SOCKET-WELDINGAND THREADED                                                                                    ASME 816.11-1996




                                    90 deg. Elbow                O
                                                                 TO                Crors              41 deg. Elbow




                                                TABLE 5 FORGED THREADED FITTINGS


          T- -     Nom.
                   Pipe
                                Center to End
                                Elbows, Tees,
                                   Crosses
                                      A
                                                     -
                                                        Center to End
                                                         45" Elbow
                                                             C
                                                                             Outside Diameter of
                                                                                    Band
                                                                                      H
                                                                                                     -
                                                                                                         Minimum Wall
                                                                                                           Thickness
                                                                                                                               Length of


                                                                                                                              --
                                                                                                                                Thread
                                                                                                                                Min. (1)

            DN     Size      -
                             2000     - - 2000 - - -
                                      3000 6000 - 3000 6000 2000                                     -
                                                                                                     2000                     B
                                                                                                                              -        L2
             6       51,       21      21  25        17      17     19  22                            3.18                     6.4     6.7
             8       '14       21      25  28        17      19     22  22                            3.18                     8.1    10.2
             10                25      28  33        19      22     25  25                            3.18                     9.1    10.4
            15
            20       i12
                      14
                               28
                               33
                                       33
                                       38
                                           38
                                           44
                                                     22
                                                     25
                                                             25
                                                             28
                                                                    28
                                                                    33
                                                                        33
                                                                        38            46
                                                                                                      3.18
                                                                                                      3.18
                                                                                                                              10.9
                                                                                                                              12.7
                                                                                                                                      13.6
                                                                                                                                      13.9
            25      1          38      44  51        28      33     35  46                            3.68                    14.7    17.3
            32      174        44      51  60        33      35     43  56                            3.89                    17.0    18.0
            40      15;        51      60  64        35      43     44  62                            4.01                    17.8    18.4
             50     2          60      64  83        43      44     52  75                            4.27                    19.0    19.2
             65     272        76      83  95        52      52     64  92                            5.61                    23.6    28.9
             80     3          86      95 106        64      64     79 1o9                            5.99                    25.9    30.5
            100     4        -106     114
                                      --  114        79
                                                     -       79
                                                             -      79
                                                                    -- 146                           -6.55                    27.7
                                                                                                                              -       33.0
                                                                                                                                      -
          GENERAL NOTE: Dimensions are in millimeters.
          NOTES:
          (1) Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat
              crests) shall not be less than L2 (effective length of external thread) required by American National Standard for Pipe Threads
              (ANSUASME 81.20.1). See Section 6.3




COPYRIGHT American Society of Mechanical Engineers
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                                                                                                                    FORGED FIlTINGS,
         ASME 816.11-1996                                                                              SOCKET-WELDING AND THREADED




                                           Coupling               Half-Coupling                  COP




                                                    TABLE 6 THREADED FITTINGS'
                                                                                                                                     ~   ~~




                                    End t o End          End t o End            Outside               End Wall             Length of
                                    Couplings              Caps                 Diameter           Thickness Min.         Thread Min.
                      Nom.              W                     P                    D                     G                    (21

            DN                    3000 and 6000        3000       6000       3000       6000       3000       6000        B          L2
              6                          32             19                     16         22        4.8        ...        6.4        6.7
              8                          35             25    '    27          19         25        4.8        6.4                  10.2      8.1
             10                          38             25         27          22         32        4.8        6.4                  10.4      9.1
             15                          48             32         33          28         38        6.4        7.9                  13.6      10.9
             20                          51             37         38          35         44        6.4        7.9      12.7        13.9
             25                          60             41         43          44         57                  11.2 9.7 14.7         17.3
             32                          67             44         46          57         64                  11.2 9.7 17.0         18.0
             40                          79             44         48          64         76        11.2      12.7                  18.4      17.8
             50                          86             48         51          76         92        12.7      15.7      19.0        19.2
             65                          92             60         64          92        108        15.7      19.0      23.6        28.9
             80                         108             65         68         108        127        19.0      22.4      25.9        30.5
            1O0                         121             68         75         140        159                  28.4 22.4             33.0      27.7
         GENERAL NOTE: Dimensions are in millimeters.
         NOTES:
         (1) Class 2000 and DN6 Class 6000 couplings, half couplings, and caps are not included in this Standard.
         (2) Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formedroots and flat
             crests) shall not be less than L2 (effective length of external thread) required by American National Standard for Pipe Threads
             (ANWASME 81.20.1). See Section 6.3.




                                                                         8



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          FORGED FITTINGS,
          SOCKET-WELDING AND THREADED                                                                               ASME 616.11-1996




                                                                               -f

                 Square
               Heed                          Hex Head            Round Head
                                                                               i            Hex Head
                                                                                            Flush
                          Plug                 Plug                 Plug                     Bushing                 Bushing
                                                                                          [See Note  (la




           -r
                                                  TABLE 7 PLUGS AND BUSHINGS                                    ~      ~~~     ~




                                                 Plugs Square Head             Plugs Round Head          Hex Plugs and Bushings
                                                                                                                             Hex Height
                                               Height of       Width         Nominal                     Width                 (Min.)
                       Nominal     Length       Square          Flats        Diameter      Length        Flats
                        Pipe     (Minimum)    (Minimum)      (Minimum)       of Head     (Minimum)     (Nominal)     Bushing         Plug
                        Size         A             B              C                 E        D             F           G           "
                                                                                                                                      H
                                    10             6             7                  10      35             11                ...          6
                                    11             6            10                  14      41             16                 3           6
              10                    13             8            11                  18      41             18                 4         8
                                    14            10            14                  21      44             22                 5         8
              20                    16            11    16                          27      44             27                 6        10
              25         1          19            13            21                  33      51             36                 6        10

             32
             40    I                21
                                    21
                                    22
                                                  14
                                                  16
                                                  18
                                                                24
                                                                28
                                                                32
                                                                                '
                                                                                    43
                                                                                    48
                                                                                    60
                                                                                            51
                                                                                            51
                                                                                            64
                                                                                                           46
                                                                                                           50
                                                                                                           65
                                                                                                                              7
                                                                                                                              8
                                                                                                                              9
                                                                                                                                       14
                                                                                                                                       16
                                                                                                                                       18
                                    27            19            36                          70 73                            10 75     19
                                    28            21            41              89          70              90               10        21
                                    32            25            65             114          76             115               13
                                                                                                                                   -   25
           GENERAL NOTE: Dimensions are in millimeters.
           NOTE:
           (1) Cautionary Note Regarding Hex Bushings. Hex Head Bushings of one-size reduction should not be used in services wherein
               they might be subject to harmful loads and forces other than internal pressures.




                                                                         9




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                                                                                   ~~                 ~




            S T D - A S M E B L b - 1 1 - E N G L L97b          075’7b70 0580338 72b M


                                                                                                              ASME 816.11-1996




                                                              ANNEX A
                                                           INCH TABLES

                                (This Annex is an integral part of ASME 616.11-1996 and is placed after the
                                                 main text for convenience. See para. 1.5.)




                                         This Annex providestables         of the
                                                                                standard       inch
                                       dimensions forfittings.




                                                                      11



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                                                                                                                                                   C




                                                                                           I                                 I
                                         90 deg. Elbow                      Croaa                             Tm                      45 deg. Elbow                  Coupling       Half-Coupling                Cap


                                                                                               TABLE A4 SOCKET-WELDING FITTINGS
                  -


                  Nom.
                  Pipe
                  Size
                         Socket
                          Bore
                         >ia. (2)
                            B

                         0.440
                                  Bore Diameter of
                                    Fittings (2)




                                  3000
                                          D

                                         Cless
                                    Designation



                                         MH)o

                                 0.299 0.189
                                                 9ooo Ave.
                                                          3000
                                                                     Wall
                                                              SocketThickness




                                                     t- -T- -1-
                                                             Min.
                                                                 Class Designation
                                                                  Designation

                                                                        6000

                                                                     Ave.    Min.
                                                                                    -
                                                                                     (1)




                                                                                    Ave.       Min.   Min.
                                                                                                              Body Wall




                                                                                                              T
                                                                                                                  Min.    Min.
                                                                                                                                 T
                                                                                                                                 Depth
                                                                                                                                   of
                                                                                                                                 Sockel
                                                                                                                                   J
                                                                                                                                  Min.
                                                                                                                                               Center to Bottom of Socket - A




                                                                                                                                            - - - -- -
                                                                                                                                            - - Soou - - -
                                                                                                                                            3000       BOM
                                                                                                                                                          t
                                                                                                                                                          Class Designation

                                                                                                                                                                      3ooo Boo0 Bow
                                                                                                                                                                                       J     Laying Lengths


                                                                                                                                                                                           auplingr
                                                                                                                                                                                              E
                                                                                                                                                                                                       Half
                                                                                                                                                                                                      buplingr
                                                                                                                                                                                                         F
                                                                                                                                                                                                                  Tolerances f



                                                                                                                                                                                                                  A      E      F
                                                                                                                                                                                                                                      -

                                                                                                                                                                                                                                      m
                                                                                                                                                                                                                                      3
                                                                                                                                                                                                                                             End Wall
                                                                                                                                                                                                                                             Thickness
                                                                                                                                                                                                                                               &h.

                                                                                                                                                                                                                                               -
                                                                                                                                                                                                                                      Class Derignltion




                                                                                                                                                                                                                                               -
                                                                                                                                                                                                                                               moll
                                                      0.125 O. 125 O. 156 0.135                       0.095 0.124                    0.38   0.44       0.44           0.31   0.31            0.25      0.62      0.03   0.06 0.03     0.19     0.25
                         0.420   0.239 0.126
                         0.575         0.280     0.394
                                                       0.149 0.130 0.181 O. 158                       0.119 0.145                    0.38   0.44       0.53           0.31   0.31            0.25      0.62      0.03 0.06 0.03       0.19     0.25
                         0.555         0.220     0.334
                         0.710         0.389     0.523
                                                       0.1 58 0.138 0.198 0.172                       0.126 0.158                    0.38   0.53       0.62           0.31   0.44            0.25      0.69      0.06   0.12 0.06     0.19     0.25
                         0.690         0.329     0.463
                         0.875   0.652 0.494     0.282
                                                       0.184 0.161 0.235 0.204 0.368              0.147
                                                                                               0.322            0.188 0.294          0.38   0.62       0.75   1.o0    0.44   0.50   0.82     0.38      0.88      0.06          0.06 0.12
                                                                                                                                                                                                                                    0.25       0.31   0.44
                         0.855   0.592 0.434     0.222

                         1.085   0.854       0.464 0.642
                                                    0.193    0.168 0.274 0.238 0.385           D.337 0.154      0.219 0.308          0.50   0.75       0.88   1.12    0.50   0.56   0.75     0.38      0.94      0.06 0.12     0.06   0.25     0.31   0.50
                         1.o65   0.794 0.582 0.404
                         1.350   1.079 0.845 0.829
                                                    0.224    0.196 0.312 0.273 0.448           3.392 0.179 0.250 0.358               0.50   0.88       1.06   1.25    0.56   0.69   0.81     0.50      1.12      0.08   0.18   0.08   0.38     0.44   0.56
                         1.330   1.019       0,569 0.785
                         1.695                1.410
                                       1.190 0.926
                                                    0.239    0.208 0.312 0.273 0.478              0.191
                                                                                               1.418            0.250    0.382       0.50   1.o6       1.25   1.38    0.69   0.81   0.88     0.50      1.19      0.08   0.16 0.08     0.38     0.44   0.56
                         1.675         1.130 0.866
                                             1.350
                         1.935               1.130 1.368      1,640
                                                    0.250    0.218 0.351 0.307 0.500              0.200
                                                                                               3.438            0.281    0.400       0.50   1.25       1.50   1.50    0.81   1.00   1.00     0.50      1.25      0.08   0.16   0.08   0.44     0.50   0.82
                         1.915   1,580 1.308 1.070

                         2.426   2.097 1.717 1.533
                                                   0.273     0.238   0.430 0.374 0.545 1.477
                                                                                          0.218                 0.344 0.436          0.62   1.50       1.62   2.12    1.00   1.12   1.12     0.75      1.62      0.08   0.16   0.08   0.50     0.62   0.75
                         2.408   2.037       1.473 1.657
                         2.931   2.529
                                                   0.345     0.302                                    0.276                          0.62   1.62                      1.12                   0.75      1.69      0.10   0.20 0.10     0.62     0.75
                         2.906   2.409
                         3.560   3.128
                                                   0.375     0.m                                      0.300                          0.62   2.25                      1.25                  0.75       1.75      0.10   0.20   0.10   0.75     0.88
                         3.535   3.008
                         4.570   4.088
                      -  4.545   3.986
                                                   0.421

                 GENERAL NOTE: Dimensions are in inches.
                                                             0.368                                    0.337
                                                                                                                                 -   0.75   2.62
                                                                                                                                                                      -
                                                                                                                                                                      1.62                  0.75       1.88
                                                                                                                                                                                                                 -
                                                                                                                                                                                                                 0.10   0.20   0.10   0.88
                                                                                                                                                                                                                                      -        1.12
                                                                                                                                                                                                                                               L




                 NOTES:
                 (1) Average of Socket Wall Thickness around periphery shall be noless than listed values. The minimum valuesare permitted in localized areas.
                 (2) Upper and lower values for each size are the respective maximum and minimum dimensions.




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          FORGED FITTINGS,
          SOCKET-WELDING AND THREADED                                                                                   ASME 816.11-1996




                                    90 dog. Elbow                    TO@            cross             45 dog. Elbow




                                                TABLE A5 FORGEDTHREADED FllTlNGS
                          Center t o End
                          Elbows, Tees,             Center t o End         Outside Diameter of        Minimum Wall            Length of
                             Crosses                 45" Elbow                    Band                  Thickness            Thread Min.
             Nom.
             Pipe
                                A                        C                          H                       G
                                                                                                                    -              (1)

             Size      2000    - 6000
                               3000             2000     3000    6000      2000
                                                                                  - 6000
                                                                                  3000             2000     - 6000 -
                                                                                                            3000         B
                                                                                                            0.125 0.250 0.25
                                                                                                                                         L2
                                                                                                                                     0.2639
               '18     0.81     0.81    0.97     0.69    0.69    0.75      0.88   0.88      1.o0   0.125
               '14     0.81     0.97    1.12     0.69    0.75    0.88      0.88   1.o0      1.31   0.1 25 0.130     0.260   0.32     0.40 18
               3/8     0.97     1.12    1.31     0.75    0.88    1.o0      1.o0   1.31      1.50   0.125 O. 138     0.275   0.36     0.4078
               5;      1.12     1.31    1.50     0.88    1.o0    1.12      1.31   1.50      1.81   0.125 0.161      0.321   0.43     0.5337

               3                1.50    1.75     1.o0    1.12     1.31     1.50    1.81     2.19   O. 125 O. 170    0.336   0.50     0.5457
                  14    1.31
              1         1.50    1.75    2.00     1.12    1.31     1.38     1.81    2.19     2.44   0.145 O. 196     0.391   0.58     0.6828
              1         1.75    2.00    2.38     1.31    1.38     1.69     2.19    2.44     2.97   0.153 0.208      0.417   0.67     0.7068
              15;       2.00    2.38    2.50     1.38    1.69     1.72     2.44    2.97     3.31   0.1 58 0.2 19    0.436   0.70     0.7235

              2         2.38    2.50    3.25     1.69    1.72     2.06     2.97    3.31     4.00   0.168    0.281   0.476   0.75     0.7565
              2   v*    3.00    3.25    3.75     2.06    2.06     2.50     3.62    4.00     4.75   0.221    0.301   0.602   0.93     1.138
              3         3.38    3.75    4.19     2.50    2.50     3.12     4.31    4.75     5.75   0.236    0.348   0.655   1 .o2    1.200
              4         4.19    4.50    4.50     3.12    3.1 2    3.12     5.75    6.00     6.00   0.258    0.440   0.735   1 .o9    1.300
            GENERAL NOTE: Dimensions are in inches.
            NOTES:
            (1) Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat
                crests) shall not be less than L (effective length of external thread) required by American National Standard for Pipe Threads
                                                p
                (ANSUASME 81.20.1). See Section 6.3




                                                                            13



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                                                                                                                   FORGED FITTINGS,
        ASME B16.11-1996                                                                              SOCKET-WELDING AND THREADED




                                         Coupling
                             Half-Coupling                                                       COP




                                                 TABLEA6THREADED                  FllTlNGS (1)


                                                                                                                   T
                                                                             ~~




           Nom.
           Pipe
           Size
                         End t o End
                         Couplings
                             W

                        3000 and 6000
                                                End t o End



                                              3000
                                                  Caps
                                                     P

                                                         6000        3000
                                                                         Outside
                                                                         Diameter
                                                                            D

                                                                                  6000
                                                                                         I       End Wall

                                                                                              T h i c k n y Min.

                                                                                             3000         6000
                                                                                                                       Length of Thread


                                                                                                                        B
                                                                                                                           Min. (21
                                                                                                                                 . .


                                                                                                                                   12
             1
              10             1.25             0.75        ...         0.62        0.88 0.19            ...             0.25     0.2639
             94              1.38             1 .o0 1 .O6             0.75        1.o0      0.19      0.25             0.32     0.40 18
             3
              /a             1.50             1.o0        1.O6        0.88                  0.19 1.25 0.25             0.36     0.4078
             '/2             1.88             1.25 1.31               1.12                  0.25 1.50 0.31             0.43     0.5337
             3
              4              2.00             1.44      1.50          1.38        1.75      0.25           0.31        0.50     0.5457
            1                2.38             1.62 1.69               1.75        2.25      0.38           0.44        0.58     0.6828
            1Y4              2.62             1.75 1.81               2.25        2.50      0.38           0.44        0.67     0.7068
            1'/2             3.1 2            1.75 1.88               2.50        3.00 0.44                0.50        0.70     0.7235

            2                3.38             1.88 2.00              3.00         3.62       0.50          0.62        0.75     0.7565
            292              3.62             2.38      2.50         3.62         4.25       0.62          0.75        0.93     1.138
            3                4.25             2.56 2.69              4.25         5.00       0.75          0.88        1 .o2    1.200
            4                4.75             2.69 2.94              5.50         6.25       0.88          1.12        1 .o9    1.300
        GENERAL NOTE: Dimensions are in inches.
        NOTES:
        (1) Class 2000 and DN6 Class 6000 couplings, half couplings, and caps are not included in this Standard.
        (2) Dimension B is minimum length of perfect thread. The length of useful thread (B plus threads with fully formed roots and flat
            crests) shall not be less than L2 (effective length of external thread) required by American National Standard for Pipe Threads
            (ANSVASME 81.20.1). See Section 6.3




                                                                        14



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          FORGED FITTINGS,
          SOCKET-WELDING AND THREADED                                                                                   ASME 616.11-1996




                    Head
                       Hex
                   Square Head                                     Heed
                                                                      Hex
                                                                   Round Head                                             Fluah
Plug                  Plug
                                                                                            o0
                                                                                            @ Note cf
                                                                                                    ll




                                                    TABLEA7        PLUGS AND BUSHINGS
                                      -
                                             Plugs Square Head                 Plugs Round Head            Hex Plugs and Bushings
                                                                     I
                                           Height of      Width           Nominal                                                 (Min.)
             Nominal
              Pipe
              Size
                            Length
                          (Minimum)
                              A
                                            Square
                                          (Minimum)
                                               B
                                                           Flats
                                                        (Minimum)
                                                             C
                                                                          Diameter
                                                                          of Head
                                                                               E
                                                                                        (Minimum)
                                                                                            D
                                                                                                    1   (Nominal)
                                                                                                           F
                                                                                                                    1   Buzing     Plug
                                                                                                                                    H
                             0.38            0.25          0.28             0.41           1.38            .4
                                                                                                          04              ...      0.25
                             0.44            0.25          0.38 0.53                       1.62           0.62 0.12                0.25
                             0.50            0.31          O .44            O .69          1.62           0.69           0.16      0.31
                             0.56            0.38          0.56             0.84           1.75                          0.19 0.88 0.31

                             0.62            0.44           0.62            1.O6           1.75           1.O6   0.22              0.38
                             0.75            0.50           0.81            1.31           2.00           1.38   0.25              0.38
                             0.81            0.56           0.94            1.69           2.00           1.75   0.28              0.56
                             0.81            0.62           1.12   1.91                    2.00           2.00   0.31              0.62

                             0.88            0.69           1.31            2.38                                                   0.69
                             1.O6            0.75           1.50            2.88                                                   0.75
                             1.12            0.81           1.69            3.50                                                   0.81
                             1.25            1.o0           2.50 4.50                                                              1.o0
                                      L
            GENERAL NOTE: Dimensions are in inches.
            NOTE:
            (1) Cautionary Note Regarding Hex Bushings. Hex Head Bushings of one-size reduction should not be used in services wherein
                they might be subject to harmful loads and forces other than internal pressures.




                                                                          15




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                                                                                                                   ASME 816.11-1996




                                                      ANNEX B
                                          METHOD FOR BURST TESTING FITTINGS

                                  (This Annex is an integral part of ASME 816.11-1996 and is placed after the
                                                   main text for convenience. See para. 5.2.)




            B1 This Annex is included to provide documentation                                      p = -2SFt
          of design requirements for nonstandard materials as a                                           D
          service to users of this Standard (see para. 5.2).
                                                                               where
                                                                               P = computedburstingstrength of pipegage
            B2 Such fittings whose design cannot be established                      pressure
          by mathematical analyses contained in nationally recog-              S = specification minimum ultimate tensile strength
          nized pressure vessel or piping codes may be established                   of pipe material
          by proof testing in accordance with Section B3.                      F = 1.125, which is a factor to adjust test pressure
                                                                                     for the actual tensile strength of the test piece
                                                                                t = pipe wall thickness
             B3 To insure adequacy of fittings design, the actual                 = 0.90 x nominal thickness in sizes DN 32 (lx
          bursting strength of fittings shall not be less than the                   in.)and less
          computed bursting strength of the pipe of the designated                = 0.93 x nominal thickness in sizes DN 40 (172
          schedule number and material. To determine the relative                    in.) and larger
          strength of the fitting, straight pipe of the designated             D = outside diameter of pipe
          wall thickness andmaterial shall bewelded to each
          end of the socket-welding fitting or threaded into each            (NOTE: Any dimensionally consistent system may be
          end of the threadedend fitting, 153 mm (6.0 in.) in                used.)
          length but not less than twice the outside diameter of                Since the above formula is applicable only to straight
          the pipe, and with proper end closures applied beyond              pipe it cannot be used for a direct computation of the
          the minimum length of straight pipe. Hydrostatic pres-                    strength
                                                                             bursting             of fittings. The fittings ability to
          sure shall be applied until at least the computer bursting         withstandbursting shall be gaged only by comparing
          pressure is achieved.                                              their behavior on test with the calculated bursting
             The computed  bursting strength of pipe shall be                strength of straight pipe of the designated wall thickness
          determined on the basis ofthe following formula:                   andmaterial.




                                                                        17


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                 S T D - A S M E B L b = L L - E N G L L97b              0 7 5 7 b 7 0 0580344 T Z T          =


                                                                ANNEX C
                                                QUALITY SYSTEM PROGRAM

                                    (This Annex is not a part of ASME 616.11-1996 and is included for
                                                        information purposes only.)




                                         The products manufactured in accordance with this
                                      Standard shall beproduced     under a quality system
                                      program following the principles of an appropriate
                                      standard from the IS0 9000 series’. A determination
                                      of theneed for registration and/or certification of the
                                      product manufacturer’s quality system program by an
                                      independent organization shall bethe responsibility of
                                      the manufacturer. The detailed documentation demon-
                                      strating program compliance shall be available tothe
                                      purchaser at the manufacturer’s facility. A written sum-
                                      mary description of the program utilized by the product
                                      manufacturer shall be available to the purchaser upon
                                      request. The product manufacturer is defined as the
                                      entity whose name or trademark appears on the product
                                      in accordance with the marking or identification require-
                                      ments of this Standard.


                                         The series is also available from the American National Standards
                                       Institute (ANSI) and the     American Society for Quality Control
                                       (ASQC) as American National Standards arethat        identified by a
                                       prefix “Q” replacing theprefix “ISO’. Each   standard of the series
                                       is listed under references.




                                                                        19




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                                                                                                              ASME 818.11-1996




                                                              ANNEX D
                                                            REFERENCES

                                (This Annex is an integral part of ASME 816.11-1996 and is placed after the
                                                        main text for convenience.)




                    List of standards and specifications referencedin this Standard showing the year of approval.


                    ASME Publications
                    ANSIJASME B1.20.1-1983                  Pipe Threads, General Purpose (Inch)
                     (R1993)
                    ANSIJASME B36.10M-1985                  Welded and Seamless Wrought Steel Pipe
                    ANSIJASME B16.34-1988                   Valves - Flanged, Threaded, and Welding End


                    ASTM Publications
                    ASTM A 105/A 105M-94                    Specification for Forgings, Carbon Steel, for Piping
                                                              Components
                     ASTM A 182/A 182M-94C                  Specification for Forgedor Rolled Alloy-Steel Pipe
                                                              Flanges, Forged Fittings, and Valves andParts for
                                                              High-Temperature Service
                     ASTM A 234JA 234M-94                   Specification for Pipe Fittingsof Wrought Carbon
                                                              Steel and Alloy Steel for Moderate and Elevated
                                                              Temperatures
                     ASTM A 350JA 350M-94                   Specification for Forgings, Carbon and Low-Alloy
                                                               Steel, Requiring Notch Toughness Testing for Piping
                                                               Components
                     ASTM A 403/A 403M-94A                  Specification for Wrought Austenitic Stainless Steel
                                                               Pipe Fittings
                     ASTM A 420lA 420M-94A                  Specification for Piping Fittingsof Wrought Carbon
                                                               Steel and Alloy Steel for Low-Temperature Service
                     ASTM B 366-95                          Specification for Factory-Made Wrought Nickel and
                                                               Nickel Alloy Welding Fittings
                     ASTM B 160-93                           Specification for Nickel Rod and Bar
                     ASTM B 164-93                           Specification for Nickel-Copper Alloy Rod, Bar and
                                                               Wire


                     IS0 Publications
                     I S 0 9000-1 1994. Quality Management and Quality Assurance Standards-Part 1: Guidelines
                     for Selection and Use

                     I S 0 9000-21993.QualityManagementandQualityAssuranceStandards-Part2:Generic
                     Guidelines for theApplication of IS0 9001, IS0 9002,and IS0 9003

                     IS0 9000-3 199 1. Quality Management and Quality Assurance Standards-Part 3: Guidelines
                     for the Application of IS0 9001 to the Development, Supply, and Maintenance of Software


                                                                      21



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                                                                                                          FORGED FIlTINGS,
         ASME 618.11-1996                                                                    SOCKET-WELDINGAND THREADED



                   IS0 9001 -1994. Quality Systems: Model for Quality Assurance         in Design, Development,
                   Production,Installation, and Servicing

                   IS0 9002-1994. Quality Systems: Model for Quality Assurance in Production and Servicing

                   IS0 9003- 1994. Quality Systems: Model for Quality Assurance in Final Inspection and Test


                   Publications of the following organizations appear   on the above list:

                   ASME                                 The American Society of Mechanical Engineers
                                                        345 East 47th Street, New York, NY 10017
                   ASTM                                 American Society for Testing and Materials
                                                        100 Barr Harbor Drive, West
                                                        Conshohocken, PA 19428
                   IS0                                  IS0 Central Secretariat
                                                        Case Postale 56
                                                        CH-1211 Geneva 20
                                                        Switzerland/Suisse


                   Publications appearing above which havebeen approved as American National Standards
                   may also be obtained from:

                   ANSI                                 American National Standards Institute, Inc.
                                                        11 West 42nd Street, New York, NY 10036




                                                                22



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              STD-ASME BLb.11-ENGL                  199b D 0759b70 0580147 739 D




                                      AMERICAN NATIONAL STANDARDS FOR PIPING,
                                         PIPE FLANGES, FITTINGS, AND VALVES




          The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary
             catalog, or the latest information about our publications, call 1-800-THE-ASME(1-800-843-2763).




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