... Q550CFC, NR400ZL7>. GB 16Mn, 15MnV, 15MnVN, Q460CShipbuilding and Offshore Platform Steel Plate: Classification Society Certificate: CCS, ... L360), X56 (L390), X60 (L420), X65, X70Quenching and Tempering High Tensile Steel Plate: Standard: Special ConditionGrade: ... annealing, tempering, quenching, normalizing plus tempering, quenching and tempering, and other delivery states are available. Tests: HIC, ...