钢铁及合金的类型

英文名称

前缀字母

统一数字代号

合金结构钢

Alloy structural steel

A

Ax x x x x

轴承钢

Bearing steel

B

Bx x x x x

铸铁、铸钢及铸造合金

Cast iron，cast steel and east alloy

C

Cx x x x x

电工用钢和纯铁

Electrical steel and iron

E

Ex x x x x

铁合金和生铁

Ferro alloy and pig iron

F

Fx x x x x

高温合金和耐蚀合金

Heat resisting and corrosion resist—ing alloy

H

 

Hx x x x x

 

精密合金及其他特殊物

理性能材料

Precision alloy and other special

physical character materials

J

JX X X X X

低合金钢

Low alloy steel

L

Lx x x x x

杂类材料

Miscellaneous materials

M

Mx x x x x

粉末及粉末材料

Powders and powder materials

P

Px x x x x

快淬金属及合金

Quick quench matels and alloys

Q

Qx x x x x

不锈、耐蚀和耐热钢

Stainless，corrosion resisting and

heat resistin steel

S

 

S×××××

 

工具锵

Tool steel

T

T×××××

非合金钢

Unalloy steel

U

U×××××

焊接用钢及合金

Steel and alloy for welding

W

Wx××××