Name

Stainless Steel Tubes /pipe

Standard

ASTM A554, A249, A269 and A270, A312/DIN11850

Material Grade

201 ( Ni 0.8%-1.2%),

202 (Ni 3.5%~4.5%),

301(Ni 5%)

304 (Ni 8%, Cr 18%),

304L(Ni8,Cr18 with low carbon)

316 (Ni 10%, Cr 18%),

316L (Ni10%~14% CR:18% with low carbon),

Outer Diameter

ROUND :6mm—219mm SQUARE:10MMX10MM-100MMX100MM/RECTANGUALR:5MMX10MM-50MMX100MM

Thickness

0.25mm - 3.0mm

Length

6m or as customers' request

Tolerance

a) Outer Diameter:  +/- 0.2mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mm

Surface

Satin / Hairline/180G/320G/400G/600G(MirrorFinished)

Application

Decoration Structure, upholstery, industry instrument

Test

ULTRASONIC THICKNESS METER ,EXPANSION TEST,EDDY TEST ETC.

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