... Vessel Steel Plate: 1>. Standard: ASTM / ASME Grade: A515 Grade 60, A515 Grade 65, A515 Grade 70, A516 Grade 60, A516 Grade 65, ... Alloy Steel Plate: 1>. Standard: ASTM Grade: A572 Grade 50, A709 Grade 50, A633D, A633E, A588 Grade B2>. Standard: JIS G3106 Grade: ... AH36, DH36, EH36, AH40, DH40, EH40, 2H Grade 50Alloy Structural Steel Plate: Standard: Special ConditionGrade: 50Mn2V, 15CrMo, 20Mn2, 40Mn2, ...