Weather proof steels Product AWS JIS EN S-7018.W A5.5/ASME SFA5.5 E7018-W1 Z3214 DA5026G ISO 2560-A - E42 2 B 3 2 S-8018.W A5.5/ASME SFA5.5 E8018-W2 Z3214 DA5826W ISO 2560-A - E50 2 B 3 2