Hello,
a little question:
what is the difference between SA 312 and SA 376 ?
It would be possible to use SA 312 in place of SA 376 ?

Thank you for help

Rino

Dear Mr. Rinosa.
Pl note SA 312 is for Seam less & welded Austenitic SS steel, whereas SA 376 is for SEAMLESS High Temp. Austenitic SS Steel. therefore, if client requirement is to use seamless Fittings then SA 312 Welded fitting can't be used.
other then this, Pl. note SA 379 has been much emphasis on heat treatment of high carbon & nitrogen steel, whereas such emphasis hasn't made in SA 312.

In, my opinion single "YES" or "NO" for your question can not be given. However,"YES" - if you are fulfilling project requirement & minimum requirement of SA 379.
"NO" - if, SA 379 shall not complied under for Technical delivery condition of your Material.

With regards
Vishal Tailor