ClassNK Grants First General Design Approval for Low-Pressure LCO₂ Cargo Tank

Mitsubishi and Nippon Steel obtain ClassNK approval for new LCO₂ tank steel

Mitsubishi Shipbuilding and Nippon Steel have received the world’s first General Design Approval (GDA) from ClassNK for a low-pressure liquefied CO₂ (LCO₂) tank made using KF460 steel.

ClassNK Grants First General Design Approval for Low-Pressure LCO₂ Cargo Tank

ClassNK has issued the world’s first General Design Approval for a low-pressure liquefied CO₂ cargo tank that removes the need for post-weld heat treatment. The approval verifies compliance at the detailed design level using Engineering Critical Assessment (ECA). The design incorporates new KF460 steel, supporting future large-scale LCO₂ transport for carbon capture initiatives. ClassNK has announced it has granted General Design Approval (GDA) …