Ss Seamless Pipe

304 Seamless SS Pipe
1.Grade:201,304,316...
2.thickness of the pipe:1mm-20mm
3.ISO,SGS
4.OEM service available

304 Seamless SS Pipe  

Name

304 Seamless SS Pipe

Standard

ASTM A554, A312, A249, A269 and A270

Material Grade

304,316,201,202, 316L,430

Size Range

1) Outer diameter:≥1mm

2) Wall thickness: ≥0.4mm

Length

6m or as customers' request

Tolerance

a) Outer Diameter:  +/-0. 15mm 

b) Thickness: +/- 0.02mm

c) Length:+/-4. 5mm - 0mm 

Surface

180G, 320G, 400G Satin / Hairline(Matt Finish, Brush, Dull Finish)

400G, 500G, 600G or 800G Mirror finish

Application

Ornamental tubes, Decoration construction, upholstery, industry instruments

Test

Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDT

Chemical Composition of Material

Composition

   Material

201

202

304

316

430

C

≤0.15

≤0.15

≤0.08

≤0.08

≤0.12

Si

≤1.00

≤1.00

≤1.00

≤1.00

≤1.00

Mn

5.5-7.5

7.5-10

≤2.00

≤2.00

≤1.00

P

≤0.06

≤0.06

≤0.045

≤0.045

≤0.040

S

≤0.03

≤0.03

≤0.030

≤0.030

≤0.030

Cr

16-18

17-19

18-20

16-18

16-18

Ni

3.5-5.5

4-6

8-10.5

10-14

Mo

2.0-3.0

Mechanical Property

Material Item    

201

202

304

316

Tensile Strength

≥535

≥520

≥520

≥520

Yield Strength

≥245

≥205

≥205

≥205

Extension

≥30%

≥30%

≥35%

≥35%

Hardness (HV)

<253

<253

<200

<200

1.seamless

2.Grade

    200,300,400 series

3.shape:

     round,square
Application:

     industry,decoration, medical,ball point pen and structure1)

Standard:

     ASTM,JIS,DIN,GB,EN

2) Outer diameter:≥1mm

3) Wall thickness: ≥0.3mm

4) Length: 5. 8m(or according to customers' requests)

5) Tolerance:

A) Outer diameter: +/-0. 15mm

B) Wall Thickness: +/-11%

C) Length: +/-4. 5mm - 0mm

6) Material:  201,304, 304L, 316, 316L,317, 321, 409, 430,439 etc.

7) Surface: Mirror polish, satin polish, without polish

We can also make according to customer required.