ASMEB31.3-2022(2023) (RevisionofASMEB31.3-2020) Process Piping ASME CodeforPressure Piping B31 ANINTERNATIONALPIPING CODE? TheAmerican Societyof Mechanical Engineers
Errata to ASMEB31.3-2022 Process Piping Revisions to para. 328.5.2 were inadvertently omitted from ASME B31.3-2022 page 68. The paragraph should read as follows: 328.5.2Fillet and SocketWelds (a) Fillet and socket welds may vary from convex to concave.The size of these welds shall be determined as shown in Figure 328.5.2A. (b）Forany single continuous fillet weld greater than 5mm (/i6in.），the weld maybe less thanthe specified fillet weld size by not more than 1.5 mm (*/i6in.）) provided the total undersized portion of the weld does not exceed 10% of the total length of the weld or 50 mm (2 in.) whichever is less. (c) Minimum attachment weld dimensions for double-welded slip-on flanges socket welding flangesand other socket welding ponents shall be as shown in Figures 328.5.2B and 328.5.2C. d) If slip-on flanges are single welded the weld shall be at the hub i.e. the Amm by Amin weld illustrated in Figure 328.5.2B. (e) In making socket welded joints a gap as shown in Figure 328.5.2B illustration (c) and Figure 328.5.2C shallbeprviddprirwelingfrweldina gapstrequiredtobprnt rverf. THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Two Park Avenue New York NY 10016-5990 February 2023
SecondErrata to ASMEB31.3-2022 Process Piping The “Min. Tensile Strength" and “Min. Yield Strength” column headings in Table A-1 of ASME B31.3-2022 were inadvertently transposed on pages 184 through 192. The corrected pages follow this cover sheet. THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Two Park Avenue New York NY 10016-5990 May 2023
ASMEB31.3-2022 Table A-1 Basic Allowable Stresses in Tension for Metals (Cont d) Numbers in Parentheses Refer to Notes for Tables A-l and A IM; Specifications Are ASTM Unless Otherwise Indicated Class/ Min. p- Min. Tensile Min. Yield Max. Line Nomina] Product Spec Type/ UNS tion/ Size No. Temp.. Strength Strength Temp.. No. Composition Form No. Grade No. Temper in. (5) Notes F (6) ksi ksi F Low and Intermediate Alloy Steel - Pipes 1ViCr-ViMo A335 P2 KI1547 ... .. - -20 55 1 000 oW -W.2 A691 7CR KI2143 ... (11) (64) -20 55 33 1 000 A387 Gr. 2 CI. 1 3C-Mo A335 PI K11522 . . (58) -20 55 DE 1 100 4C-Mn . A369 FP1 KI 1522 3 (58) -20 55 30 1 100 57Cr-/M A369 FP2 K11547 3 -.- -20 55 30 1 100 61Cr-7Mo A691 ICR K11757 4 (11) (64) -20 55 1 200 A387 Gr. 12 CL 7vjCr- Mo A426 CP2 J11547 ... 3 -20 60 30 1 100 OWSIA18 A335 P15 K11578 -20 60 1 100 9|C- Mo-Si A426 CP15 J11522 . -20 60 30 1 100 10ICr-Mo A426 CP12 J11562 4 -20 60 30 1 200 115Cr-17Si- Mo A426 CP5b J51545 5B . -20 60 30 1 200 12|3Cr-Mo A426 CP21 J31545 . 5A -20 60 30 1 200 13aCr-Ni-Cu-A A333 4 K11267 . 4 -150 60 35 650 142Cr-Mo A369 FP3b K21509 ... 4 -20 60 1 200 15|ICr-Mo .. A33S P12 K11562 ... 4 -20 60 32 1 200 16ICr-Mo A369 FP12 K11562 ... ... 4 -.. -20 60 32 1 200 171ZtCr-/jMo-Si A33S PH K11597 ... 4 -20 60 1 200 18IVCr-% Mo-Si A369 FP11 K11597 . 4 -20 60 30 1 200 19IZjCr-ZiMo-Si A691 17.CR KI1789 4 (11) (64) -20 60 1 200 A387 Gr. 11 Cl. 205Cr-4Mo A691 5CR - K41545 .. 58 (11)(64) -20 60 1 200 A387 Gr. 5 CI. 1 215Cr-Mo A335 P5 K41545 5B -20 60 30 1 200 225Cr-7Mo-Si ... A335 P5b K51545 ... . 5B .. -20 60 1 200 235Cr-7.Mo-Ti . A335 P5c K41245 ... .. 58 . -20 60 1 200 245Cr-VMo . A369 FP5 K41545 ... . 5B ... -20 60 30 1 200 25|9Cr-IMo A335 P9 K90941 5B -20 60 30 1 200 269Cr-Mo A369 FP9 K90941 ... . 58 .4. -20 60 30 1 200 27|9Cr-IMo A691 OCR K90941 5B (11)(64) -20 60 1 200 A3B7 Gr. 9CI. 1 283Cr-IMo A335 P21 K31545 5A -20 60 1 200 184
ASME B31 3-2022 Table A-1 Basic Allowable Stressesin Tension for Metals(Cont'd) Numbers in Parentheses Refer to Notes for Tables A-I and A IM; Specifications Are ASTM Unless Otherwise Indicated Basic Allowable Stress S' ksi at Metal Temperature °F [Notes (1) (2a)] Min. Line Temp. No. to 100 200 300 400500 600 650 700 750 800 850 900 950 1 000 1 050 1 100 1 150 1.200 Low and Intermediate Alloy Steel - Pipes 118.3 18.3 18.0 17.4 16.9 16.4 16.1 15.7 15.4 14.9 14.5 13.9 9.2 5.9 218.3 18.318.3 18.318.318.017.7 17.3 16.4 15.9 14.3 9.2 5.9 318.3 18 318.0 17.4 16.9 16.4 16 1 15.7 15.4 14.9 14.5 13 7 8.2 4.8 4.0 2.4 418.3 18.318.0 17.4 16.9 16.4 16.1 15.7 15.4 14.9 14.5 13.7 8.2 4.8 4.0 2.4 18.3 18.0 17.4 16.9 16.4 16.1 15.7 15.4 14.9 5.9 2.5 ... 518.3 14.5 13.9 9.2 4.1 618.3 18.317.6 17.617.216.8 16.516.3 16 0 15.715.4 15.0 11.3 7.2 4.5 2.8 1.8 1.1 720 0 18.818.017.416.916 416.115.7 15.414.914.5 13 9 9 2 5.9 4.0 2.4 820.0 18.818.2 17.7 17.3 16.8 16.6 16.3 15.9 15.4 138 12.5 10.0 6.3 4.0 2.4 920.0 18.8 18.2 17.7 17.3 16.8 16.6 16.3 15.9 15.4 13.8 12.5 10.0 6.3 4.0 2.4 10|20.0 18.117.0 16.2 15.7 15.2 15.0 14.8 14.6 14.3 14.0 13.6 11 3 7.2 4.5 2.8 1.0 1.1 1120.0 18.117.417.2 17.1 16.816.6 16.3 15.9 15.4 14.3 10.9 8.0 5.8 4.2 2.9 1.8 1.0 1220.0 18.718.2 18.017.917.917.917.917.9 17.7 16.0 12 0 9.0 7.0 5.5 4.0 2.7 1.5 1320.0 19.118.2 17.3 16.4 15.5 15.0 1420.0 18.718.218.017.917 9 17.9 17.9 17.9 17.7 17.5 12 5 10 0 6.2 4.2 2.6 1.4 1.0 IS20.0 19.318.117.3 16.7 16.3 16.0 15.8 15.5 15.3 14.9 14.5 11.3 7.2 4.5 2.8 1.8 1.1 16|20.0 19.3 18.1 17.3 16.7 16.3 16.0 15.8 15.5 15.3 14.9 14.5 11.3 7.2 4.5 2.8 1.8 1.1 1720.0 18.S 17.6 16.8 16.2 15.7 15.4 15.1 14.8 14.4 14.0 13.6 9.3 6.3 4.2 2.8 1.9 1.2 1820.0 18.517.6 16.8 16.2 15.7 15.4 15.1 14.8 14.4 14.0 13.6 9.3 6.3 4.2 2.8 1.9 1.2 1920.0 20.0 20.0 19.6 18.9 18.3 18.0 17.6 17.2 16.8 16.4 13.7 9.3 6.3 4.2 2.8 1.9 1.2 2020.0 18.117.417.217.116.816.616.315.915.4 10.9 8.0 5.8 4.2 2.9 1.8 1.0 2120.0 18.117.4 17.217.116.816.616.315.9 15.4 14.3 10.9 8.0 5.8 4.2 2.9 1.8 1.0 2220.0 18.117.4 17.217.1 16.816.6 16.3 15.9 15.4 14.3 10.9 8.0 5.8 4.2 2.9 1.8 1.0 2320.0 18.117.4 17.2 17.1 16.8 16 6 16.3 15.9 15.4 14.3 10.9 8.0 5.8 4.2 2.9 1.0 1.0 2420.0 18.117.417.217.116.816.6 16.315.9 15.4 14.3 10.9 8.0 5.8 4.2 2.9 1.8 1.0 2520.0 18.117.4 17.2 17.1 16.8 16.6 16.3 15.9 15.4 14.8 14.1 10.6 7.4 5.0 3.3 2.2 1.5 2620.0 18.117.4 17.217.116.816.6 16.3 159 15.4 14.8 14.1 10.6 7.4 5.0 3.3 2.2 1.5 2720.0 18.117.4 17.2 17.1 16.8 16.6 16.3 15.9 14.1 10.6 7.4 5.0 3.3 2.2 1.5 2820.0 18.718.218.017.917.917.917.917.9 16.0 12.0 9.0 7.0 5.5 4.0 2.7 1.5 185
ASME B31.3-2022 （2023）工艺管道(英文版592页).pdf
