square iron pipe

Features of square iron pipe :

• A large stock of pipes ready for call-off 
• Pipes manufactured to specified dimensions on request 
• Pipes can be produced in high quality alloys 
• Pipes can be supplied in a variety of finishes 
• Pipes can be cut to size on our premises ready for immediate supply 
• Worldwide shipping 
• Pipes produced to ISO 9001:2000 quality specification                                                        

Specifications of square iron pipe :

1. Standard:   GB,ASTM,JIS,DIN

2. Grade:201,202,301, 321, 304, 304L, 316, 316L, 409, etc

3. OD range:  6mm-762mm 

4. Wall thickness range:  0.5-50mm 

5. Length: max.18000mm or as demand

6.Surface finish:  Polishing (180#,220#,240#,320#400#,600#), Hairline, aid pickling and so on

7. Manufacture technology: cold drawn/cold rolled/hot rolled

 8.Type:Seamless & Welded

Applications of Stainless Steel Pipe: 

1).Petroleum, Chemical enterprise, superheater of boiler, heat exchanger

2).High temperature resistant transmission fluid pipe in power station

3).Ship with pressure pipe

4).The exhaust purification device

5) Construction and ornament

We could manufacture different Shapes of Stainless Steel Pipes/Tubes for various applications: 

Common Grades of Stainless Steel Pipes/Tubes:

Manufacturing Process of Stainless Steel Pipe:

The process commences with the formation of welded mother tube on the tube mill from imported and tested prime quality stainless steel strips. The latest TIG multi electrode welding technique is employed for superior weld quality and 100% Fusion, with argon purging, No filler metal added.

These mother tubes are solution annealed at 1060 D. 1100 D. C in continuous annealing furnace followed by immediate quenching to prevent chromium carbide precipitation.

Annealing of mother tuber ensures:

A) Removal of stress induced during tube forming and cold drawing:

B) Sufficient ductility and softness for cold drawing:

C) Transformation of the weld zone to austenitic nature,

D) Re crystallization of metallic grains to original form and thereby improving corrosion resistance.

During annealing, scales are formed on the surface of the tubes. In order to remove these, the tubes are pickled by immersing into hot pickling solution made of nitric acid, sulphuric acid and hydrofluoric acid.

Technical notes:

Chemical composition & Mechanical Property

SMC's promise: 

As the word leading manufacturer and supplier, Shanghai Metal Corporation makes“Service,Management,Craftsmanship."  In our commitment to deliver world class service, SMC's Quality Control Department not only promise to provide the best quality products, excellent customer services,  fast and reliable deliveries, and reasonable prices; but also goes the extra step to provide environment conscious products that will improve lives.

 Package of Stainless Steel Tube/Pipe
Please don’t worry that our products are packed, stored, transported according to the international regulation. We do care about the quality of our products; even some little details are paid attention to.
We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage. Identification labels are tagged according to standard specification or customer's instructions. Special packing is available as per customer's requirement.
Plus, our storage racks are made of wood. Other kinds of metals are settled in other places, far from the stainless steel. Any unwanted chemical reaction can be prevented.

Export Markets
Our target market is the international market. Every year we export most of products to countries like India, Pakistan, South Korea, Brazil, Australia, South Africa, Spain, Sri Lanka, Taiwan, Hong Kong, etc.