... Grade: S420N, S460N, S275JR, S275J0, S275J2, S275NL, S355JR, S355J0, S355J2, S355K2, S355NL6>. Standard: Special Condition Grade: WH60A ... , NR400ZL7>. GB 16Mn, 15MnV, 15MnVN, Q460CShipbuilding and Offshore Platform Steel Plate: Classification Society Certificate: CCS ... , tempering, quenching, normalizing plus tempering, quenching and tempering, and other delivery states are available. Tests: HIC, ...