Grade

C

Si

Mn

P

S

Ni

Cr

Mo

301

≤0 .15

≤l.0

≤2.0

≤0.045

≤ 0.03

6.0-8.0

16.0-18.0

-

302

≤0 .15

≤1.0

≤2.0

≤0.035

≤ 0.03

8.0-10.0

17.0-19.0

-

304

≤0 .0.08

≤1.0

≤2.0

≤0.045

≤ 0.03

8.0-10.5

18.0-20.0

-

304L

≤0.03

≤1.0

≤2.0

≤0.035

≤ 0.03

9.0-13.0

18.0-20.0

-

309S

≤0.08

≤1.0

≤2.0

≤0.045

≤ 0.03

12.0-15.0

22.0-24.0

-

310S

≤0.08

≤1.5

≤2.0

≤0.035

≤ 0.03

19.0-22.0

24.0-26.0

316

≤0.08

≤1.0

≤2.0

≤0.045

≤ 0.03

10.0-14.0

16.0-18.0

2.0-

3

316L

≤0 .03

≤1.0

≤2.0

≤0.045

≤ 0.03

12.0 - 15.0

16 .0 -1 8.0

2.0 -

3

321

≤ 0 .08

≤1.0

≤2.0

≤0.035

≤ 0.03

9.0 - 13 .0

17.0 -1 9.0

-

630

≤ 0 .07

≤1.0

≤1.0

≤0.035

≤ 0.03

3.0-5.0

15.5-17.5

-

631

≤0.09

≤1.0

≤1.0

≤0.030

≤0.035

6.50-7.75

16.0-18.0

-

904L

≤ 2 .0

≤0.045

≤1.0

≤0.035

-

23.0·28.0

19.0-23.0

4.0-5.0

2205

≤0.03

≤1.0

≤2.0

≤0.030

≤0.02

4.5-6.5

22.0-23.0

3.0-3.5

2507

≤0.03

≤0.8

≤1.2

≤0.035

≤0.02

6.0-8.0

24.0-26.0

3.0-5.0

2520

≤0.08

≤1.5

≤2.0

≤0.045

≤ 0.03

0.19 -0. 22

0. 24 -0 . 26

-

410

≤0.15

≤1.0

≤1.0

≤0.035

≤ 0.03

-

11.5-13.5

-

430

≤0.1 2

≤0.75

≤1.0

≤ 0.040

≤ 0.03

≤0.60

16.0 -18.0

-