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China Supplier! Stainless Steel Seamless Pipe DN200 DN250

Material:
usd/ton:
Availability:
Quantity:
  • 201,304,316,etc
  • 7304

Quick Details

  • Standard: ASTM, AISI, DIN, EN, GB, JIS

  • Place of Origin: Jiangsu, China (Mainland)

  • Model Number: 304

  • Type: Seamless Welded

  • Steel Grade: 300 Series

  • Application: Fluid, gas and oil transport,Construction

  • Certification: BV IBR ISO ROHS SGS

  • Thickness: 0.5-30mm

  • Outer Diameter: 6-1020mm

  • color: natural color

  • process: cold-draw,extrude,polish

  • sample: free


Packaging & Delivery

Packaging Details: woven bag, plastic wrapper and wooden packing or as your requirement

China supplier! stainless steel seamless pipe

Detailed information

Material

304:0cr18ni9, 0cr17ni8

201:1cr17mn6ni5n,1cr13mn9ni1n

316:0cr17ni12 or as customer's request

Size(round pipe)

9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4, 28, 318, 35, 60, 63.5, 73, 76.2, 88.9, 101.6,

114.3, 127, 133, 159, 168, 219 mm or customized

Size (square pipe)

10×10,12×12,18×18,23×23,38×38,50×50,70×70,100×100,20×10,23×10,24×12,25×13,36×23,

40×20,50×20,60×15,75×45,80×60,95×45,100×60,150×100 mm or customized

Size (oval pipe)

30×15,80×40 mm os customized

Thickness

0.24-3 mm

Length

6m or according to customer's request

Outer diameter

6.35-219mm

Tolerance

Outer diameter :±0.2mm

Thickness :±0.02mm

Length :±0.5mm

Process method

Code drawn, annealed with nitrogen protection, ultrasonic,automatic shape, polished

Finishing

A: sanded  B: 400#-600# mirror  C: hairline brushed  D: TIN titanlum

E : HL brushed & mirror (two kinds of finishing for one pipe)


                                                                Chemical Composition

Material

C

Si

Mn

P

S

Cr

Ni

201

≤0.12

≤0.75

9.5-12.5

≤0.045

≤0.03

13-16

0.8-1.5

304

≤0.08

≤0.75

≤2.0

≤0.045

≤0.03

18-19

8-10

316

≤0.08

≤1.00

≤2.0

≤0.035

≤0.03

10-14

16.0-18.5

430

≤0.12

≤0.75

≤2.0

≤0.04

≤0.03

16-18

≤0.6


Chemical composition

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

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

Surface Finish


Surface Finish Definition Application
2B Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. Medical equipment, Food industry, Construction material, Kitchen utensils.
BA Those processed with bright heat treatment after cold rolling. Kitchen utensils, Electric equipment, Building construction.
NO.3 Those finished by polishing with No. 100 to No. 120 abrasives specified in JIS R6001. Kitchen utensils, Building construction.
NO.4 Those finished by polishing with No. 150 to No. 180 abrasives specified in JIS R6001. Kitchen utensils, Building construction, Medical equipment.
HL Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. Building Construction.
NO. 1 The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. Chemical tank, pipe.


Packaging & Transportation

Every round welded 201 / 304 stainless steel pipe is sleeved in plastic bag individually, and several tubes are packed to be bundle without any logo.also pack as customer requirement

Our promise

We insist " quality first, reputation foremost "If you have any problem please feel free to contact us! We primose to service you with the best product of the most reasonbale, all the time ,offer our best service.

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