Is ASME "SA" material allowable in ASME B31.3?

[beh188]

The listed material specificaitons in ASME B31.3 are all ASTM specifications. I have been looking, but unable to locate so far, where in the code it states that you may use ASME "SA" material. For example, use SA-479 instead of A-479. Does anyone know if you are allowed to use "SA" material, and where is states this in the code?

I know there is little if anything different between an SA spec. and an A spec., but I would like to follow the code.

Thanks.

 

[metengr]

Yes, you can use ASME material specifications in B31.3. See below from ASME B31.3

323.1.2 Unlisted Materials. Unlisted materials may
be used provided they conform to a published specification
covering chemistry, physical and mechanical properties,
method and process of manufacture, heat
treatment, and quality control, and otherwise meet the
requirements of this Code. Allowable stresses shall be
determined in accordance with the applicable allowable

 

[ndeguy]

Many materials are dual-certificated A/SA. Even if the material certificate only lists either A or SA, then generally A/SA requiremnts are identical as is written on the front page of the SA specification just beneath the title.

 

[JLSeagull]

If you see a material that says something like A 216 it is referring to ASTM A 216/A 216M. If you see SA 216 you are seeing a reference to the ASME standard. I think that pressure vessels require a reference to the ASME code standard.

 

[ndeguy]

In the case of SA-479 Stainless steel bars, my copy (2004) says "Identical with ASTM Specification A479/A479M-99a". As long as no significant changes to A479 have taken place since its issue -99a then to all intents and purposes SA-479 material is identical with A-479.

I hope this helps

 

[Guest102023]

My understanding has always been that the ASME SA-xxx standard can be identical to the equivalent ASTM Axxx or it may delete requirements (typically newer alloy grades), but it will not otherwise modify or add to them. When SA-xxx is identical it will say so near the top of page 1.

Please correct me if there are exceptions to the above.