Steel Grade

Chemical Composition (%)

Mechanical Properties

C

Si

Mn

P

S

Ni

Cr

Cu

Mo

Yield Strength
(Kgf/mm2)

Tensile Strength
(Kgf/mm2)

Elongation
(%)

Hardness
(HRB)

201 modification

≦0.15

≦1.0

6.5-10.0

≦0.06

≦0.03

0.5-3.0

13.5-17.0

1.0-3.0

-

≧25

≧65

≧40

≦100

202 modification

≦0.15

≦1.0

6.5-10.0

≦0.06

≦0.03

3.0-6.0

13.5-17.0

1.0-3.0

-

≧25

≧60

≧40

≦95

304

≦0.08

≦1.0

≦2.0

≦0.045

≦0.03

8.0-10.5

18.0-20.0

-

-

≧21

≧53

≧40

≦90

304L

≦0.03

≦0.75

≦2.0

≦0.045

≦0.03

8.0-12.0

18.0-20.0

-

-

≧18

≧49

≧40

≦90

316

≦0.08

≦0.75

≦2.0

≦0.045

≦0.03

10.0-14.0

16.0-18.0

-

2.0-3.0

≧21

≧53

≧40

≦90

316L

≦0.03

≦0.75

≦2.0

≦0.045

≦0.03

10.0-14.0

16.0-18.0

-

2.0-3.0

≧18

≧49

≧40

≦90