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Square Stainless Steel Tube

Stainless Steel Tube Matt Finished

Stainless steel tube matt finished We are one of the biggest stainless steel exporters in China. We have supplied stainless steel coils, circles, strips sheets, pipes, tubes and etc. For 12 years. Home depot with high quality and competitive price. Please send me detail product, grade, finish...
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Product Description

The suface of this kind of stainless steel tube has been matt finished. The matt process can improve its anti-corrosion and anti-tarnish properties. The reason why stainless steel tube matt finished does not rust is mainly due to the presence of chromium and nickel components, and matte treatment not only can eliminate impurities and surface iron-rich layer of stainless steel matrix inclusion, but also enrich chromium and nickel on the surface to form a film that has a good anti-corrosion effect effect.


Specifications

Material

316: 0cr17ni12 or as customer’s request

304: 0cr18ni9, 0cr17ni8

201: 1cr17mn6ni5n, 1cr13mn9ni1n

Round pipe

9.5, 12.7, 15.9, 17, 18, 19.1, 20, 21, 22.2, 23, 25.4,   28, 31.8, 35, 60, 63.5,

 73, 76.2, 88.9, 101.6, 114.3, 127, 133, 159, 168, 219 mm or customized

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

Oval pipe

10*20, 10*30, 20*40, 25*38, 30*60, 40*60, 40*80, 60*90 ~125*300 mm

or customized

Thickness

0.5-8.0 mm

Length

6m or according to customer’s request

Outer diameter

6.35-219mm

5*5-500*500mm or custom made

Tolerance

Outer diameter:±0.2mm

Thickness:±0.02mm
Length:±0.5mm

Process method

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

NDT

Eddy Current or Hydraulic Test

Heat Treatment

Bright Annealed

Finishing

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

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

Certificate

ISO 9001 & PED97/23/EC 

Shippment

Tube and material test reports(EN 10204/3.1B) accompany every shipment upon request

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

0.4-1.5

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

Application

Stainless steel tube matt finished is widely used in many fields such as pharmaceutical, food, drinking water, bioengineering, chemical engineering, air purification, aviation, nuclear industry, etc.

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Our Advantages

1. What  is your major market?

We sell to the countries like Russia, Poland, Lithuania, UK, Columbia, Canada, etc.

2. What is your location?

We are located in Foshan City which is a famous stainless steel production base. Our new workshop is located in Sanshui District, Foshan City. 

3.What's the annual output?

More than 25000 tons stainless steel tubes in a year.

4. What is your welding method?

Our tubes can get fully welding and smoonth inner welding, without blisters, leak welding or black line. 

5. How do you control the quality during the polishing  process?

1)As for the mirror polish square/rectangular tube, we will polish it as least four times.

2)During the polishing processing, we set a special sanding wheel to polish the welding part.

3)To avoid scratches, after polishing,the tubes will be lay out on a steel crate then we could lift the whole steel crate instead of the tube.

4)On the other hand, we use the gunny bags to protect the tube's surface when the tube laying-out.

6. How do you inspect the tubes?

1) Before the production of each machine, we will have the first checked and record the data.

2) During the production, our inspector and engineer have been carefully moniting and we record the data every two hours. 

Production Process

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