Marine steel plate material

Marine steel plate material, general strength hull structure steel is divided into A, B, C, D, 4 grades, the yield strength of these 4 grades of steel (not less than 235N/mm^2) and tensile strength (400 ~ 520N /mm^2) is the same, but the impact energy at different temperatures is different; high-strength hull structural steel is divided into strength grades according to its minimum yield strength, and each strength grade is divided into A, D, E, F, 4 grades.

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. Impact toughness that can be achieved at -40°, -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. Impact toughness that can be achieved at -40°, -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. The impact toughness that can be achieved at -40° and -60°.

High-strength quenched and tempered steel for welded structures:
A420, D420, E420, F420; A460, D460, E460, F460; A500, D500, E500, F500; A550, D550, E550, F550; A620, D620, E620, F620; A690, D690, E690, F690;

Steel for boilers and pressure vessels: 360A, 360B; 410A, 410B; 460A, 460B; 490A, 490B; 1Cr0.5Mo, 2.25Cr1Mo

Steel for mechanical structure: Generally, the above steel can be used;
Low temperature toughness steel: 0.5NiA, 0.5NiB, 1.5Ni, 3.5Ni, 5Ni, 9NI;

Austenitic stainless steel: 00Cr18Ni10, 00Cr18Ni10N, 00Cr17Ni14Mo2, 00Cr17Ni13Mo2N, 00Cr19Ni13Mo3, 00Cr19Ni13Mo3N, 0Cr18Ni11Nb;

Duplex stainless steel: 00Cr22Ni5Mo3N, 00Cr25Ni6Mo3Cu, 00Cr25Ni7Mo4N3.

Clad steel plate: suitable for containers and cargo tanks of chemical carriers;

Z-direction steel: It is a steel that has undergone special treatment (such as calcium treatment, vacuum degassing, argon stirring, etc.) and appropriate heat treatment on the basis of a certain grade of structural steel (called parent steel).

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