K460
Steel Features: This steel is high carbon chromium and manganese vanadium alloy steel, high wear resistance and toughness, small deformation hardening.
Product Description: This is with chromium, manganese and vanadium alloy steel mainly of oil quenching, have the ability and the depth of hardening resistance, good abrasion resistance without deformation, can be used for electrical erosion operation. Used for all cutting mold, such as Die, die notches, printing mold, plastic mold, wire tapping and screw plate mold, wood cutting tools and so on.
Forged: 1050 ℃ to 850 ℃ began hammering stopped, melted down with the furnace cooling.
Annealing: 710-750 ℃ ​​protective gas furnace slow cooling.
Stress relief: 650 ℃ heat 1-2 hours after slow cooling with the furnace.
Quenching: 780-820 ℃ heat through insulation after quenching oil or 200-250 ℃ monitor nitrate solution hardening, tempering immediately cooled to 50-70 ℃.
Tempering: tempering tempering temperature and time can refer to the chart