Metal Fort
Balkrishna Niwas, Mumbai, Maharashtra
GST No. 27ABGFM3159H1Z4
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- Duplex Stainless Steel
| Thickness | 2 - 10 mm |
| Brand | Metal Fort |
| Material | Duplex Stainless Steel |
| Usage/Application | Construction |
| Shape | Rectangular |
| Width | 400 - 1600 mm |
| Length | 3 - 6 m |
| Brand | Metal Fort |
| Shape | Round |
| Diameter | 1 - 8 inch |
| Usage/Application | Construction |
| Material | Duplex Stainless Steel |
| Minimum Order Quantity | 1 Kg |
| UNS Number | Duplex Steel, Duplex Steel UNS S31803, Duplex Steel UNS S32205, Super Duplex Steel UNS S32750 |
| Size | 1/2 TO 50 INCH |
| Nominal Bore | 1/2 - 50 |
| Brand | Japan , Europe & Indian |
| Material | Duplex steel, Duplex Steel, Duplex Steel UNS S31803, Duplex Steel UNS S32205, Super Duplex Steel UNS |
| Outside Diameter | 25 MM TO 500 MM |
| Steel Grade | Duplex Steel |
| Usage/Application | Chemical, Fertilizer, Oil and Gas, Petrochemical, Heat Exchanger, Desalination |
| Thickness | 0-1 mm, 1-2 mm, 2-3 mm, 3-4 mm, 4-5 mm, >5 mm |
| Type | erw and seamless |
| Unit Pipe Length | 9 meter, 3 meter, 6 meter |
| Shape | Round |
| I Deal In | New Only |
Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim being to produce a 50/50 mix, although, in commercial alloys, the mix may be 40/60 respectively.
Duplex steels have improved strength over austenitic stainless steels and improved resistance to localised corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. They are characterised by high chromium (19–28%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. The most used duplex stainless steels are the 2205 (22% Chromium, 5% Nickel) and the 2507 (25% Chromium, 7% Nickel); 2507 is known as “super duplex” due to its higher resistance to corrosion.
The mechanical properties of Duplex are approximately double those of singular austenitic steels, and resistance to stress corrosion cracking is far superior to type 316 stainless steel in chloride solutions. Duplex steel has a ductile or brittle transition at approximately -50 degrees.