CCS A marine steel plate is classified as medium and heavy plates, which are hot-rolled steel plates produced in accordance with the requirements of the classification society construction rules for the manufacture of hull structures. For CCS A marine steel plate, firstly, good toughness is the most critical requirement. In addition, it requires higher strength, good corrosion resistance, welding performance, processing and forming performance and surface quality.
In order to ensure the quality of CCS A marine steel plate and ensure sufficient toughness, the chemical composition of Mn/C is required to be above 2.5, and there are also strict requirements for carbon equivalent, and they are produced by steel plants approved by the ship inspection department.
CCS A marine steel plate belong to the China Classification Society standard. The general strength structural steels are divided into four quality levels: A, B, C, and D (ie CCS A, CCS B, CCS C, CCS D); China Classification Society rules Standard high-strength structural steel has three strength levels and four quality levels.
