Duplex Stainless Steel (DSS for short) refers to stainless steel with ferrite and austenite each accounting for about 50%. Generally, the content of less phases needs to be at least 30%. In the case of low C content, the Cr content is 18% to 28%, and the Ni content is 3% to 10%. Some steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N.This type of steel has the characteristics of austenitic and ferritic stainless steel. Compared with ferrite, it has higher plasticity and toughness, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance, while still maintaining iron The 475℃ brittleness, high thermal conductivity and superplasticity of the element stainless steel. Compared with austenitic stainless steel, it has high strength and significantly improved resistance to intergranular corrosion and chloride stress corrosion. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel-saving stainless steel.
|Classification||Hot Rolled Stainless Steel; Cold Rolled Stainless Steel|
|Standard||JIS4304-2005; EN10088-2; ASTM A666-02; GB/T4237-2007; JIS4304-2005; JIS4305-2005; EN10088-2; ASTM A240/240M; GB/T4237-2007; GB/T3280-2007; GB24511-2009; ASTM A480/480M|
|Surface Treatment||NO.1; 2E; 2B; 2D; NO.3; NO.4; HL; HT|