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ASTM A105 vs ASME SA105 AND OTHER MATERIALS

ASTM A105 vs ASME SA105 AND OTHER MATERIALS

ASTM A105 vs ASME SA105 AND OTHER MATERIALS

(OP)
Can somebody please give me the para where it says we can substitute, A105 for SA 105, in ASME 8, B31.1 and B31.3 sections ?? and 123.1.2 and any other relevant sections to confirm we satisfy the code with the material substitution.
Many thanks

RE: ASTM A105 vs ASME SA105 AND OTHER MATERIALS

I don't know where it says the material can be substituted. My understanding is that the material for the B31.3 is A105, and for B31.1 and Section VIII is SA105.

RE: ASTM A105 vs ASME SA105 AND OTHER MATERIALS

All the three codes, refer to ASME section II PArt C , wherein it is specified that substitute of ASTM materials can be done.
Refer Mandatory Appendix-II of ASME sec II PArt A.

RE: ASTM A105 vs ASME SA105 AND OTHER MATERIALS

MK3223 has it correct. For B31.3 you need ASTM A (or B, obviously). For power piping and section div 1 work, you need ASME SA (or SB for non-ferrous alloys, if you like). I think you can 'upgrade' an ASTM A material to ASME SA according the rules contained within Sec VIII-1 and/or II-D, but I would have to look up that reference.

Quote:

All the three codes, refer to ASME section II PArt C , wherein it is specified that substitute of ASTM materials can be done.
Refer Mandatory Appendix-II of ASME sec II PArt A.

Not sure whats meant with this phrase but it doesnt seem correct to me. Sec II-C is a spec for welding rods, electrodes and filler metals.

RE: ASTM A105 vs ASME SA105 AND OTHER MATERIALS

This is what dual certification can be used for with materials. It is important to note that the material specification designation of SA from ASME B&PV Codes and Standards means the ASME B&PV committee has reviewed and approved the ASTM material specification for use. In many cases, the ASTM and ASME SA material specifications can be identical and in other cases there could be exceptions.

RE: ASTM A105 vs ASME SA105 AND OTHER MATERIALS

Both of the above materials are identical, in fact the note on the heading of SA 105(Sec II, Pt A) tells the facts. However for ASME design using materials with ASME classification(SA) are better with respect any design approval, or regulators' approval related issues. Sec-IX is open to both the specifications by assigning P No.

Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
ca.linkedin.com/pub/pradip-goswami/5/985/299

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