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Properties and uses of some Cr-Ni-Mn-N austenitic stainless steels
Source:Xinsteel   Date:2020/7/12
1. 20Cr13Mn9Ni4 stainless steel has good atmospheric corrosion resistance, and can be used as stamping parts and structural materials with certain corrosion resistance requirements. It can replace 302 (12Cr18Ni9) and 17Cr18Ni9 steel, which is generally used in the aviation industry to make high-strength structural parts of aircraft or military machinery parts.
2. The performance of 20Cr15Mn15Ni2N steel and 202 (12Cr18Mn9Ni5N) stainless steel are similar, both belong to nickel-saving austenitic stainless steel, Cr, Ni content is low, C and Mn content is high, has good mechanical properties and corrosion resistance, can replace 302 (12Cr18Ni9) It is used for impact parts and structural parts that are generally required for stainless, and can be used in corrosive media below 450 degrees Celsius. Its use is similar to 202 stainless steel.
3. 53Cr21Mn9Ni4N stainless steel is a heat-resistant steel in the Cr-Mn-Ni-N series. The steel has good high-temperature strength and hardness performance, and is used for making exhaust valves for gasoline and diesel with high temperature strength as the main steel for exhaust valve products, and is special steel for valves.