SUS202 SUS202 Chinese name Chinese brands S35450,1Cr18Mn8Ni5N US 202, S20200 Japan, Germany, France and Britain control SUS202 grades: X12CrMnNiN18-9-5 About 200 series - chromium - nickel - manganese austenitic stainless steel 200 series stainless steel nickel content is very low, which corrosion resistance is far below the 300,400 series. With the naked eye can not distinguish between it and the other high-nickel stainless steel difference. SUS202 stainless steel nickel content of 4-6%, Mn content of 7.5-10% 201/202 with Mn-N-Ni element instead of Ni element forming part of austenite, is to ease the shortage of nickel resources, the nickel-steel . The biggest difference between the performance of their use is corrosion resistance, the other forming, welding performance and 304 fairly. Chemical composition C: ≤0.150 Si: ≤1.00 Mn: 7.50-10.00 P: ≤0.060 S: ≤0.03 0 Ni: 4.0-6.0 Cr: 17-19 N: ≤0.25 performance properties Tensile strength σb (MPa): ≥635 Yield strength σ0.2 (MPa): ≥245 Elongation δ5 (%): ≥40 Hardness: ≤207HB; ≤95HRB; ≤218HV delivery status generally heat treatment delivery, the treatment types specified in the contract; not indicated, by not heat treatment delivery.