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ASME B31.3-2016
<br /> checked for adequacy of mechanical strength as 305.1 General
<br /> described in para. 302.5. Documentation showing com- Listed pipe may be used in Normal Fluid Service
<br /> pliance with this paragraph shall be available for the except as stated in paras. 305.2.1 and 305.2.2. Unlisted
<br /> owner's approval. pipe may be used only as provided in para. 302.2.3.
<br /> (a) extensive, successful service experience under
<br /> comparable conditions with similarly proportioned 305.2 Specific Requirements
<br /> components of the same or like material.
<br /> 305.2.1 Pipe for Category D Fluid Service. The fol- (16)
<br /> (b) experimental stress analysis,such as described in
<br /> the BPV Code, Section VIII, Division 2,Annex 5.F. lowing carbon steel pipe may be used only for
<br /> (c) proof test in accordance with ASME B16.9, Category D Fluid Service:
<br /> MSS SP-97, or Section VIII, Division 1, UG-101. API 5L continuous welded (furnace butt-welded)
<br /> (d) detailed stress analysis (e.g., finite element ASTM A53, Type F
<br /> ASTM A134 made from other than ASTM A285
<br /> method)with results evaluated as described in the BPV plate
<br /> Code,Section VIII,Division 2,Part 5.The basic allowable
<br /> stress from Table A-1 or Table A-IM shall be used in 305.2.2 Pipe Requiring Safeguarding. When used
<br /> place of the allowable stress, S, in Division 2 where for other than Category D Fluid Service, the following
<br /> applicable. Load design factors used in a Division 2 carbon steel pipe shall be safeguarded:
<br /> evaluation shall be consistent with the design bases in ASTM A134 made from ASTM A285 plate
<br /> para.302.3.2.At design temperatures in the creep range, ASTM A139
<br /> additional considerations beyond the scope of Division 2 305.2.3 Pipe for Severe Cyclic Conditions (16)
<br /> may be necessary.
<br /> (e) For any of the above,the designer may interpolate (a) Except as limited in subparas.(b)through(d),only
<br /> the following pipe may be used under severe cyclic
<br /> between sizes, wall thicknesses, and pressure classes, conditions:
<br /> and may determine analogies among related materials. (1) pipe listed in Table A-IA,where Ec>_ 0.90,7 or
<br /> 304.7.3 Metallic Components With Nonmetallic (2) pipe listed in Table A-113,where Ej >_ 0.907
<br /> Pressure Parts. Components not covered by standards (b) For API 5L pipe,only the following materials may
<br /> listed in Table 326.1,in which both metallic and nonme- be used:
<br /> tallic parts contain the pressure, shall be evaluated by Grade A or B, seamless
<br /> applicable requirements of para. A304.7.2 as well as Grade A or B, SAW, str. seam, Ej >_ 0.95
<br /> those of para. 304.7.2. Grade X42, seamless
<br /> 304.7.4 Expansion Joints Grade X46, seamless
<br /> (a) Metallic Bellows Expansion Joints. The design of bel- Grade X52, seamless
<br /> lows type expansion joints shall be in accordance with Grade X56, seamless
<br /> Appendix X. See also Appendix F, para. F304.7.4 for Grade X60, seamless
<br /> further design considerations. (c) For copper pipe, only ASTM B42 may be used.
<br /> (b) Slip Type Expansion Joints (d) For copper alloy pipe, only ASTM B466 may be
<br /> (1) Pressure-containing elements shall be in accor- used.
<br /> dance with para.318 and other applicable requirements (e) For aluminum alloy pipe, only ASTM B210 and
<br /> of this Code. 13241,both in tempers O and H112, may be used.
<br /> (2) External piping loads shall not impose excessive 305.2.4 Elevated Temperature Fluid Service. In
<br /> bending on the joint.
<br /> (3) The effective pressure thrust area shall be com- Elevated Temperature Fluid Service,all longitudinal or
<br /> puted using the outside diameter of the pipe. spiral(helical seam)welds in P-No.4 or P-No.5 materi-
<br /> als shall be examined by 100% radiography or 100%
<br /> (c) Other Types of Expansion Joint. The design of other
<br /> types of expansion joint shall be qualified as required ultrasonic examination.Acceptance criteria are as stated
<br /> in para. 341.3.2 and in Table 341.3.2, for Normal Fluid
<br /> by para. 304.7.2. Service, unless otherwise specified.
<br /> PART 3 306 FITTINGS, BENDS, MITERS, LAPS, AND
<br /> FLUID SERVICE REQUIREMENTS FOR PIPING BRANCH CONNECTIONS
<br /> COMPONENTS
<br /> 305 PIPE Fittings, bends, miters, laps, and branch connections
<br /> may be used in accordance with paras. 306.1 through
<br /> Pipe includes components designated as "tube" or 306.5.Pipe and other materials used in such components
<br /> "tubing" in the material specification, when intended
<br /> for pressure service. 7 See para.302.3.3.
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