... resistance 1.Smelting characteristics*The features of composition design high toughness, well polishable, Strong corrosion resistance*The using ... for Tempering 200-300°C,*Hardness 50-53HRCHigh carbon content, high chromium content, good harden-ability.The use of ESR to ... electronic components, rejected table-knife tool, container, etc.High smooth surface. Produce optical products, for example camera, ...