Good day,
I have a question about table 4.2 "samples of alloys contained in material groups" in AWS D17.1: 2001 CODE, according to the groups IIA and IIB. 17-7PH is the recommended alloy for qualification of this group, but it is in IIB group. my question is, Is 17-7PH recommended alloy for qualification of IIA group, too? Because IIA group don´t have recommended alloy.

THANKS