Breadcrubs

We are Distributors and Suppliers of 2507 super duplex stainless steel.

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super duplex stainless steel suppliers in uae.

Typically twice the yield of austenitic stainless steels. Minimum Specified UTS typically 680 to 750N/mm2 (98.6 to 108ksi). Elongation typically > 25%.
Superior corrosion resistance than a 316. Good Resistance to stress corrosion cracking in a chloride environment.

Duplex materials have improved over the last decade; further additions of Nitrogen have been made improving weldability.

Because of the complex nature of this material it is important that it is sourced from good quality steel mills and is properly solution annealed. Castings and possibly thick sections may not cool fast when annealed causing sigma and other deleterious phases to form.

The material work hardens if cold formed; even the strain produced from welding can work harden the material particularly in multi pass welding. Therefore a full solution anneal is advantageous, particularly if low service temperatures are foreseen.

The high strength of this material can make joint fit up difficult.

Usable temperature range restricted to, -50 to 280°C

Used in Oil & Natural Gas production, chemical plants etc

No. Type Grade SCH Size Range Origin

1 Seamless pipes 316/316L Sch 10s 1/2" to 18" Japanese/European

2 Seamless pipes 316/316L Sch 40s 1/2" to 12" Japanese/European

3 Seamless pipes 316/316L Sch 80s 1/2" to 12" Japanese/European

4 Seamless pipes 316/316L Sch 160s 1" to 8" Japanese/European

5 Seamless pipes 304/304L Sch 10s 1" to 12" Japanese/European

6 Seamless pipes 304/304L Sch 40s 1/2" to 12" Japanese/European

7 Seamless pipes 304/304L Sch 80s 1/2" to 8" Japanese/European

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