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一般強度船體結構用鋼分為A、B、C、D4個等級，這4個等級的鋼材的屈服強度（不小于235N/mm^2）和抗拉強度（400～520N/mm^2）一樣，只是不同溫度下的沖擊功不一樣而已；
Normal strength hull structural steel is divided into A, B, C, D4 grades, the yield strength of the 4 grades of steel (less than 235N/mm^2) and tensile strength (400 ~ 520N/mm^2), just under the different temperature impact energy were different;
高強度船體結構用鋼按其最小屈服強度劃分強度等級，每一強度等級又按其沖擊韌性的不同分為A、D、E、F4級。
The strength of high strength hull steel is divided according to its minimum yield strength, and each strength grade is divided into A, D, E, F4 grade according to the different impact toughness.
A32、D32、E32、F32的屈服強度不小于315N/mm^2，抗拉強度440～570N/mm^2，A、D、E、F分別表示其各自可分別在0°、-20°、-40°、-60°的情況下所能達到的沖擊韌性；
The yield strength of A32, D32, E32 and F32 not less than 315N/mm^2, the tensile strength of 440 ~ 570N/mm^2, A, D, E and F respectively, their impact toughness can be respectively at 0 degrees, -20 degrees, -40 degrees, -60 degrees under the condition can be achieved;
A36、D36、E36、F36的屈服強度不小于355N/mm^2，抗拉強度490～620N/mm^2，A、D、E、F分別表示其各自可分別在0°、-20°、-40°、-60°的情況下所能達到的沖擊韌性；
The yield strength of A36, D36, E36 and F36 not less than 355N/mm^2, the tensile strength of 490 ~ 620N/mm^2, A, D, E and F respectively, their impact toughness can be respectively at 0 degrees, -20 degrees, -40 degrees, -60 degrees under the condition can be achieved;
A40、D40、E40、F40的屈服強度不小于390N/mm^2，抗拉強度510～660N/mm^2，A、D、E、F分別表示其各自可分別在0°、-20°、-40°、-60°的情況下所能達到的沖擊韌性。

The yield strength of A40, D40, E40 and F40 not less than 390N/mm^2, the tensile strength of 510 ~ 660N/mm^2, A, D, E and F respectively, their impact toughness can be respectively at 0 degrees, -20 degrees, -40 degrees, -60 degrees under the condition can be achieved.
還有，焊接結構用高強度淬火回火鋼：A420、D420、E420、F420；A460、D460、E460、F460；A500、D500、E500、F500；A550、D550、E550、F550；A620、D620、E620、F620；A690、D690、E690、F690；
Also, High Strength Quenched and tempered steel for welded structure: A420, D420, E420, F420; A460, D460, E460, F460; A500, D500, E500, F500; A550, D550, E550, F550; A620, D620, E620, F620; A690, D690, E690, F690;
鍋爐與受壓容器用鋼：360A、360B；410A、410B；460A、460B；490A、490B；1Cr0.5Mo、2.25Cr1Mo
Boiler and pressure vessel steel: 360A, 360B; 410A, 410B; 460A, 460B; 490A, 490B; 1Cr0.5Mo, 2.25Cr1Mo
機械結構用鋼：一般可選用上述鋼材；
Steel for mechanical structure: steel can be used in general;
低溫韌性鋼：0.5NiA、0.5NiB、1.5Ni、3.5Ni、5Ni、9Ni；
Low temperature toughness steel: 0.5NiA, 0.5NiB, 1.5Ni, 3.5Ni, 5Ni, 9Ni;
奧氏體不銹鋼：00Cr18Ni10、00Cr18Ni10N、00Cr17Ni14Mo2、00Cr17Ni13Mo2N、00Cr19Ni13Mo3、00Cr19Ni13Mo3N、0Cr18Ni11Nb；
Austenitic stainless steel: 00Cr18Ni10, 00Cr18Ni10N, 00Cr17Ni14Mo2, 00Cr17Ni13Mo2N, 00Cr19Ni13Mo3, 00Cr19Ni13Mo3N, 0Cr18Ni11Nb;
雙相不銹鋼：00Cr22Ni5Mo3N、00Cr25Ni6Mo3Cu、00Cr25Ni7Mo4N3。
Duplex stainless steel: 00Cr22Ni5Mo3N, 00Cr25Ni6Mo3Cu, 00Cr25Ni7Mo4N3.
復合鋼板：適用于化學制品運輸船的容器和液貨艙；
Composite steel plate: container and liquid cargo tank for chemical carrier;
Z向鋼：是在某一等級結構鋼（稱為母級鋼）的基礎上，經過特殊處理（如鈣處理、真空脫氣、氬氣攪拌等）和適當熱處理的鋼材。
Z to steel: on a certain grade structural steel (referred to as the parent steel) on the basis of special treatment (such as calcium treatment, vacuum degassing, argon mixing, etc.) and appropriate heat treatment of steel.