ASME SA387 Grade 11 Class 2 Steel Plate Specification
ASME SA387 Grade 11 Class 2 is Chrom-Moly steel plate used for welding boilers and pressure vessles designed for high temperature serivce, nominal chrome content at 1.00% to 1.50%, and Moly 0.45% to 0.65% for SA387GRADE 11 material. ... ASTM A387 Grade 11, 22, 91 Plate. ASTM A537 Class 1, 2 Plates. ASTM A572 Grade 50, 60 Steel Plates.