Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

QX-002 stainless steel pipe


 Thick wall steel pipe

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%)Drill pipe|

304 (Ni 8%, Cr 18%),

316 (Ni 10%, Cr 18%),

316L (Ni10%~14%),

430API steel pipe|ERW steel pipe|

Outer Diameter

6mm--159mm

Thickness

0.3mm - 3.5mm

Length

6m or as customers' request

 

Tolerance

a) Outer Diameter:  +/- 0.2mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mmAlloy steel pipe|Carbon steel pipe|

Surface

180G, 320G, 400G Satin / Hairline

400G, 500G, 600G or 800G Mirror finishCarbon steel pipe|

Application

Decoration construction, upholstery, industry instrumentSteel pipe |Seamless steel pipe|

Test

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

 

 

 

 

Chemical Composition of MaterialSteel pipe |

Seamless steel pipe|
 

  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 Propertywelding steel pipe

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

 

 

 

 

 

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