The Flooring Expert

The structural steel for ship hull is divided into strength grades according to its minimum yield point: general strength
structural steel and high strength structural steel. Ship plate refers to the hot-rolled steel plate produced in accordance with the requirements of the classification society’s construction codes for manufacturing the hull structure. The general strength structural steels of China Classification Society Standards are divided into four quality grades: A, B, D, and E (that is, CCSA, CCSB, CCSD, CCSE); the high-strength structural steels of China Classification Society Standards are three Strength level, four quality levels.

The yield strength of A32, D32, E32, and F32 is not less than 315N/mm^2, and the tensile strength is 440-570N/mm^2. A, D, E, and F indicate that they can each be at 0°, -20°, The impact toughness that can be achieved under the conditions of -40° and -60°;The yield strength of A36, D36, E36, and F36 is not less than 355N/mm^2, and the tensile strength is 490 620N/mm^2. A, D, E, and F indicate that they can each be at 0°, -20°, The impact toughness that can be achieved under the conditions of -40° and -60°; The yield strength of A40, D40, E40 and F40 is not less than 390N/mm^2, and the tensile strength is 510~660N/mm^2. A, D, E and F indicate that they can be at 0°, -20°, respectively. The impact toughness that can be achieved under the conditions of -40° and-60°.