D36 steel plate shipbuilding steel generally refers to the steel for hull structure, which is produced in accordance with the requirements of the construction code of classification society and used to manufacture hull structure. It is often ordered, arranged and sold as special steel. A ship includes planks, section steel, etc.

According to the minimum yield point, structural steel for D36 steel plate hull can be divided into ordinary strength structural steel and high strength structural steel.

General strength structural steel of China Classification Society is divided into four quality grades: A, B, D and E; The high-strength structural steel of China Classification Society has three strength grades and four quality grades:

A32 A36 A40

D32 D36 D40

E32 E36 E40

F32 F36 F40