… CEWELD® E 9016-B9 is designed to weld equivalent ‘type T91’ T92 CrMo steels … ASTM Grade 91, T91, P91, F91, FP91, WP91,C12A STPA28, STBA28  … E 9016-B9 … A 5.5: E9016-B91 … 3580-A: E CrMo91 …