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B31.1 B31.3 material ASTM (A) or ASME (SA)

B31.1 B31.3 material ASTM (A) or ASME (SA)

B31.1 B31.3 material ASTM (A) or ASME (SA)

(OP)
I am trying to understand why B31.1 and B31.3 list the material prefix A (ASTM) and not SA (ASME) in thier stress tables. Can someone enlighten me on this a bit please?

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

B31.1 "nonboiler external" and B 31.3 are not part of the ASME Boiler and Pressure Vessel Code; thus, the SA materials requirements are not applicable.  

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

(OP)
Is SA acceptable? Should i be specifying ASTM ONLY on B31.1 B31.3 NBEP work. While specifying SA for BEP (PP stamped)

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

SA is acceptable but you may be restricting yourself with regard to materials selection and economies of purchase.

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

(OP)
First..thank you for your time...Second ...I know its logical that SA is acceptable but can you tell me why or where this is stated.

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

For B31.1, review 102.3.1 (C) and 123.1.1 (D).

RE: B31.1 B31.3 material ASTM (A) or ASME (SA)

(OP)
Excellent..My utmost appreciation for the guidance sir!

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