CCS FH40 shipbuilding steel of CCS grade is the highest in common shipbuilding steel. Due to its high cost and strong substitutability, the minimum yield point is 390MPa, the tensile strength is between 510-650MPa, and the CCS FH40 shipbuilding steel can bear high strength, which is suitable for some steel structure parts of ships.
CCS AH40 shipbuilding steel is mainly used for shipbuilding, so we also call it CCS AH40 ship plate, CCS AH40 shipbuilding steel plate, AH40 ship steel plate. In short, these CCS AH40 marine steel plates are the same and CCS AH40 shipbuilding steel has a higher steel strength at a minimum yield strength of 390 MPa and a minimum tensile strength of 510 MPa. Low-temperature impact test was performed on the CCS AH40 shipbuilding steel at the time of rolling at zero degrees celsius.