magnetic stainless steel martensitic stainless steel: high strength, ductility and weldability is poor. Martensitic stainless steel grades are used grade 430 stainless steel 3Cr13, etc., due to the higher carbon content, it has a high strength, hardness and wear resistance, corrosion resistance, but slightly lower for high mechanical performance requirements, corrosion Precision stainless steel Some of the general requirements of the parts, such as springs, turbine blades, valves and other hydraulic machines. Such steel is after quenching, tempering use.
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