pwht of 304l s.s.

[jnn11197]

hello, I have a small vessel that is 304l s.s. it calls out for pwht to asme standards could some one tell me what the holding temp is? the mat. is 5/16 thick.
Thanks,

 

[vesselfab]

WHY ARE YOU PWHT THE STAINLESS STEEL?

 

[jnn11197]

the customer calls out for heat treat

 

[metengr]

PWHT of P-No 8 material is neither prohibited nor recommended by ASME B&PV Code.

 

[stanweld]

Since there are no standards in ASME, ask the Purchaser how he wants it performed.

 

[jnn11197]

thank you