Grade

200series:201.202

300series:301.302.304.304L,314,316,316L,309,310,310S

400series:409,409L,410,410S,420,430

Wall thickness

0.08mm~3mm

Outer diameter

0.3mm~12mm

Length

Max:12000mm or as demand

Surface finish

Polishing(180#,220#,240#,320#,400#,600#), Hairline, Aid Picking ,Online bright heat

Manufacture technology

Hot rolled / Cold rolled / Cold drawn

Standard

ASTM,JIS ,GB, BS, DIN, EN, etc

Commen:A249 ,A269,A312,A358,A554,A778

Payment

L/C ,T/T ,D/P, D/A

Package

Standard export packing or following customer’s demand

Nominal Diameter(mm)

Outside Diameter(mm)

Nominal Wall Thickness (mm)

N.B

NPS

SCH5S

SCH10S

SCH40S

8

1/4″

13.72

1.65

2.24

10

3/8″

17.15

1.65

2.31

15

1/2″

21.34

1.65

2.11

2.77

20

3/4″

26.67

1.65

2.11

2.87

25

1″

33.4

1.65

2.77

3.38

32

1-1/4″

42.16

1.65

2.77

3.56

40

1-1/2″

48.26

1.65

2.77

3.68

50

2″

60.33

1.65

2.77

3.91

65

2-1/2″

73.03

2.11

3.05

5.16

80

3″

88.9

2.11

3.05

5.49

90

3-1/2″

101.6

2.11

3.05

5.74

100

4″

114.3

2.11

3.05

6.02

125

5″

141.3

2.77

3.4

6.55

150

6″

168.28

2.77

3.4

7.11

200

8″

219.08

2.77

3.76

8.18

Standard

GB151 ASTM JIS DIN

OD

I

II

<Ø25---≥Ø50

±0.18

±0.30

≥Ø25---≤Ø89

±0.30

±0.45

≥Ø89---≤Ø129

±0.51

±0.80

Thickness

All specifications±0.5%

Length

All specifications±6

Straightness

All specifications≤2/1000

Grade and Main chemical composition%

C

Si

Mn

P≤

S≤

Cr

Mo

Ni

Other

201

≤0.15

≤1.00

5.5-7.5

0.06

0.03

16-18

-

3.5-5.5

N≤0.25

202

≤0.15

≤1.00

7.5-10.0

0.06

0.03

17-19

-

4.0-6.0

N≤0.25

301

≤0.15

≤1.00

≤2.00

0.045

0.03

16-18

-

6.0-8.0

-

302

≤0.15

≤1.00

≤2.00

0.045

0.03

17-19

-

8-10.0

-

303

≤0.15

≤1.00

≤2.00

0.2

≥0.015

17-19

≤0.6

8.0-10.0

-

304

≤0.08

≤1.00

≤2.00

0.045

0.03

18-20

-

8-10.5

-

304L

≤0.03

≤1.00

≤2.00

0.045

0.03

18-20

-

9-13

-

305

≤0.12

≤1.00

≤2.00

0.045

0.03

17-19

-

10.5-13

-

309S

≤0.08

≤1.00

≤2.00

0.045

0.03

22-24

-

12-15

-

310S

≤0.08

≤1.5

≤2.00

0.045

0.03

24-26

-

19-22

-

316

≤0.08

≤1.00

≤2.00

0.045

0.03

16-18

2-3

10-14

-

316L

≤0.03

≤1.00

≤2.00

0.045

0.03

16-18

2-3

12-15

-

317

≤0.08

≤1.00

≤2.00

0.045

0.03

18-20

3-4

11-15

-

317L

≤0.03

≤1.00

≤2.00

0.045

0.03

18-20

3-4

11-15

-

321

≤0.08

≤1.00

≤2.00

0.045

0.03

17-19

-

9-13

Ti≥5×C

405

≤0.08

≤1.00

≤1.00

0.04

0.03

11.5-14.5

-

≤0.6

AL0.1-0.3

420F

0.26-0.4

≤1.00

≤1.25

0.06

≥0.15

12-14

≤0.6

≤0.6

-

430

≤0.12

≤0.75

≤1.00

0.04

0.03

16-18

-

≤0.6