Chinese shipbuilding steel classification society: CCS class
Chinese shipbuilding steel grades have CCS A, CCS B, CCS D, CCS E, CCS AH32, CCS DH32, CCS EH32, CCS FH32, CCS AH36, CCS DH36, CCS EH36, CCS FH36, CCS AH40, CCS DH40, CCS EH40, CCS FH40.
The structural strength of the hull structural steel is divided according to its minimum yield point: general strength structural steel and high strength structural steel. Shipbuilding steel plate is a hot rolled steel sheet used to manufacture hull structures produced in accordance with the requirements of the classification society. The general strength structural steel of China Classification Society standard is divided into four quality grades: A, D, E and F (ie CCSA, CCSB, CCSD, CCSE); the high-strength structural steel of China Classification Society standard is three Strength level, four quality levels.
CCS Class Shipbuilding Steel Yield Strength :
The yield strength of AH32, DH32, EH32 and FH32 is not less than 315N/mm², the tensile strength is 440~570N/mm², and A, D, E and F respectively indicate that they can be respectively 0°, -20°, Impact toughness that can be achieved at -40°, -60°;
The yield strength of AH36, DH36, EH36 and FH36 is not less than 355N/mm², and the tensile strength is 490~620N/mm². A, D, E and F respectively indicate that they can be at 0° and -20° respectively. Impact toughness that can be achieved at -40°, -60°;
The yield strength of AH40, DH40, EH40 and FH40 is not less than 390N/mm², and the tensile strength is 510~660N/mm². A, D, E and F respectively indicate that they can be at 0° and -20° respectively. Impact toughness that can be achieved at -40° to -60°.
