Please Clarify , ASTM A 283 material is not specified in AWS d1.1 , Table 3.1.but as in aws b2.1 it mentioned as Group 1 material so my doubts are
1)is it possible to use prequalified WPS for this material
2)in AWS d1.1 table 4.8 saying about unlisted steel . so is this an unlisted steel and...