Products

201 stainless steel pipe ss

 201/304/316 Stainless Steel Square Pipe/Tube

Name

201/304/316 Stainless Steel Square Pipe/Tube

Standard

ASTM A554, A249, A269 and A270, A312

Material Grade

201 ( Ni 0.8%)

202 (Ni 3.5%~4.5%)

301(Ni 5%)

304 (Ni 8%, Cr 18%)

316 (Ni 10%, Cr 18%)

316L (Ni10%~14%)

Outer Diameter

6mm-1020mm

Thickness

0.5mm-30mm

Length

6m or as request

 

Tolerance

a) Outer Diameter:  +/- 0.2mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mm

Application

a) General Service Industries 

(Petroleum, Food, Chemical, Paper, Fertilizer, Fabric, Aviation and Nuclear) 

b) Fluid, gas and oil transport.

c) Pressure and Heat Transmission 

d) Construction and Ornament 

e) Boiler Heat Exchanger

Test

Squash test, extended test, water pressure test, crystal rot test, 

heat treatment, NDT

 

 

Chemical Composition of Material

Material

Composition

201

202

304

316

C

≤0.15

≤0.15

≤0.08

≤0.08

Si

≤1.00

≤1.00

≤1.00

≤1.00

Mn

5.5-7.5

7.5-10

≤2.00

≤2.00

P

≤0.06

≤0.06

≤0.045

≤0.045

S

≤0.03

≤0.03

≤0.030

≤0.030

Cr

16-18

17-19

18-20

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