steel company stainless steel pipe metal quality

Name

Stainless Steel pipe

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%),

430

Outer Diameter

6mm--159mm

Thickness

0.3mm - 3.0mm

Length

6m or as customers' reques

Tolerance

a) Outer Diameter:  +/- 0.2mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mm

Surface

180G, 320G, 400G Satin / Hairline

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

Application

Decoration construction, upholstery, industry instrument

Test

Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT

Chemical Composition of Material

  Material

Composition

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

N

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

Payment

Payment by T/T, 30% as advance payment and 70% balance pay before shipping.

Delivery time

A.7 days if this goods is stock goods.

B.30 days if this goods will be produced after order

Validity

Valid time is 3 days for price usually.