Jiangsu Steel Group Co., Limited

Stainless steel manufacturer OEM & ODM

The Stainless Steel Material Grade Chemical Composition

Inquiries : 4 - 2016-3-22 13:05:47

Martensitic, Ferritic, Austenitic and Duplex are four groups of Stainless Steel. The composition of stainless steel initial starts withchromium. once steel is combined with 10.5% chromium the resultant alloy isclassed as "stainless steel". when chromium is added to steel, oxygen creates a stable chemical compound surface film. This protects the surface ofthe steel metal from physical or chemical changes.

The list below makes a big comparison composition table for StainlessSteel Grades.

Grade and Main chemical  composition%

C

Si

Mn

P

S

Cr

Mo

Ni

Other

SUS201

0.15

1.00

5.5-7.5

0.06

0.03

16-18

-

3.5-5.5

N0.25

SUS202

0.15

1.00

7.5-10.0

0.06

0.03

17-19

-

4.0-6.0

N0.25

SUS301

0.15

1.00

2.00

0.045

0.03

16-18

-

6.0-8.0

-

SUS302

0.15

1.00

2.00

0.045

0.03

17-19

-

8-10.0

-

SUS303

0.15

1.00

2.00

0.2

0.015

17-19

0.6

8.0-10.0

-

SUS304

0.08

1.00

2.00

0.045

0.03

18-20

-

8-10.5

-

SUS304L

0.03

1.00

2.00

0.045

0.03

18-20

-

9-13

-

SUS305

0.12

1.00

2.00

0.045

0.03

17-19

-

10.5-13

-

SUS309S

0.08

1.00

2.00

0.045

0.03

22-24

-

12-15

-

SUS310S

0.08

1.5

2.00

0.045

0.03

24-26

-

19-22

-

SUS316

0.08

1.00

2.00

0.045

0.03

16-18

2-3

10-14

-

SUS316L

0.03

1.00

2.00

0.045

0.03

16-18

2-3

12-15

-

SUS317

0.08

1.00

2.00

0.045

0.03

18-20

3-4

11-15

-

SUS317L

0.03

1.00

2.00

0.045

0.03

18-20

3-4

11-15

-

SUS321

0.08

1.00

2.00

0.045

0.03

17-19

-

9-13

Ti5C

SUS405

0.08

1.00

1.00

0.04

0.03

11.5-14.5

-

0.6

AL0.1-0.3

SUS420F

0.26-0.4

1.00

1.25

0.06

0.15

12-14

0.6

0.6

-

SUS430

0.12

0.75

1.00

0.04

0.03

16-18

-

0.6















Weve compiled in depth info concerning stainless-steel grades and the way they compare with each other. we tend to hope this helps you create associate informed decision once choosing stainless-steel for your application.