K460 K460 chromium, manganese and vanadium-based oil quenched alloy steel, the hardening ability and depth of resistance, deformation, abrasion resistance and can be used for electrical erosion operation. Used for all cutting mold, such as Die, notches mode, printing mold, plastic mold, wire tapping and screw formwork, carpentry cutting tools and so on. 
 Factory state: annealing, the highest hardness 225HB 
 Steel Features: Steel chrome manganese vanadium high carbon alloy steel, high wear resistance and toughness of quenched deformation is small. 
 Purposes: cutting tool, Die, notches mode, the printing mode, cover mold, plastic mold, wire tapping, and screw formwork, carpentry cutting tools and so on. 
 Forged: 1050 ℃ began forging to 850 ℃ to stop, melted down with furnace cooling. 
 Annealing :710-750 ℃ ??protective gas furnace by slow cooling. 
 Stress relief: 650 ° C insulation 1-2 hours after slow cooling with the furnace. 
 Quenching :780-820 ° C and heat through insulation, quench oil or 200-250 ℃ NOx monitoring liquid quenching, tempering immediate cooling to 50-70 ° C. 
 Tempering: tempering temperature and time reference to the tempering