Duplex / super duplex steel pipes

Duplex pipe /super duplex stainless steel pipe

Ruimai produces and supply most popular duplex steel pipes and seamless super duplex stainless steel pipe.

We only use prime quality raw materials. The raw materials are from the top quality Chinese steel maker or from famous steel makers in the world such as Aotokump, Sandvik, ect.

1)  Size Range of duplex pipe / super duplex stainless steel pipe:

Outside diameter 6~273mm X Wall thickness 0.5~20mm

2) Available Materials of duplex steel pipes / super duplex stainless steel pipe:

UNS S31500,S31803,S32205,S32760,S32750, 904L etc
EN /DIN 1.4462, 1.4510, 1.4539

3) Executive standards of Duplex pipe/ super duplex stainless steel pipe & tubes: Duplex steel /super duplex steel seamless tubes

ASTM A789,ASTM A790, EN 10216-5 

4) Product Group including:

1. Duplex / super duplex Stainless steel heat exchanger tubes
2. Duplex / super duplex Stainless steel boiler tubes
3. Duplex / super duplex Stainless Steel Hydraulic Tubing

4. Duplex / super duplex Stainless steel instrument tubing
5. Duplex / super duplex Stainless steel U-bent tubes
6. Duplex / super duplex Line pipe / Flowline pipe

5) Applications:

Duplex pipe and super duplex pipe are mainly applied in High corrosion environments,spot corrosion and stress corrosion, mainly used in sea water environment, petrol-chemical industry, fertilizer, oil refining, petrol and gas industry, pulp & paper industry, energy and environment protection industry