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1Cr18Ni9


1Cr18Ni9 is a typical 18-8 austenitic stainless steel, corresponding to the American brand 302. This brand has high carbon content, good uniform corrosion resistance, cold working formability and weldability, but its corrosion resistance and intergranular corrosion resistance are poor. After sensitization treatment at about 650 ° C or long-term insulation at medium temperature, intergranular corrosion sensitivity is high. This brand is applicable to manufacturing parts and weldments with certain corrosion resistance and low strength requirements under medium temperature. Cold drawn steel wire and cold rolled steel strip can be used to manufacture stainless steel springs at room temperature, low temperature and below 250 ° C. This brand can not be strengthened by heat treatment, but because of its high carbon content, high strength can be obtained by cold work hardening.

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