Knowledge

Differences Between CCS AH36, DH36 and EH36 Shipbuilding Plates

CCS AH36, DH36 and EH36 are all 360 MPa-grade high-strength hull structural steels certified by the China Classification Society (CCS), and comply with the GB/T 712-2022 standard ‘Structural Steel for Ships and Offshore Structures’. The three grades have identical basic mechanical properties, such as yield strength, tensile strength and elongation; the key distinction lies in low-temperature impact toughness, which in turn leads to differences in chemical composition, production processes, application scenarios and cost.