Special Metals And Equipments (FZE)

Duplex stainless steel is a type of stainless steel consisting of a ferrite phase and an austenite phase. It complements the stress corrosion cracking resistance, which is the weakness of austenitic stainless steels, and ferritic stainless steels.  Super Duplex Sheet  has excellent performance. For this reason, the application is expanding to various fields, such as the petrochemical industry, chemical tankers, and offshore structures to bridges. Below are some of advantage and features of  Duplex 2205 Sheet . Also called a dual-phase alloy, it is a stainless steel material in which an austenite structure and a ferrite structure coexist. The greatest feature of the two-phase system is that it is resistant to stress corrosion cracking. It has magnetism because it has a ferrite structure. The coefficient of thermal expansion is between that of ferrite and austenite. Ductility is a property that is similar to ferrite and is said to have high strength, high corrosion resistan...

It is stainless steel that contains about a 25% increase in chromium (Cr), about 5% decrease in nickel, and a 1:1 two-phase mixture of austenite and ferrite. It features high strength and high corrosion resistance and is also excellent in stress corrosion cracking. Therefore, it is used in a wide range of applications such as sluices, tunnels, sewer facilities, seawater desalination plants, and chemical tankers. Duplex Plate is widely used in industries and components such as steelmaking, papermaking, desalination equipment, firewalls, bridges, pressure vessels, heat exchangers, turbine blades, and for transmission shafts for marine systems. The higher the content of chromium, molybdenum and nitrogen alloying, the better corrosion resistance property Duplex 2205 Plate has. When duplex stainless steel contains at least 30% ferrite in the microstructure, its corrosion resistance is much better than that of austenitic stainless steel. However, because ferrite is sensitive to hydrogen em...