Forging: 1.100 ~ 900 ℃ Annealing: heating to 800-850 ℃, stay at this temperature in two to four hours, allowed to cool gradually in the oven. Quenching: first pre-heated to 550-600 ℃, once heated to 950 ℃, and then heated to a: 1,220 ~ 1250 ℃; b: 1,200 ℃ ~ 1230 ℃. Hardened in oil, but oil must be guaranteed
Wet 40-60 ℃ (a general tool;.. B toughness of the tool in the form of a complex formula needed) Tempering: heating to 550-570 ℃, stays at this temperature and then cooled in still air, tempering must be repeated twice Hardness: HRC63 ℃ or more. Purpose: This is tungsten steel high speed steel, suitable for manufacturing powerful cutting wear and impact resistance of various tools, and advanced die, screw die, more complex tools required toughness and shape, cutter, drill
And so on. Dimensions: 3.2X32-40-50-65-80-105-130-155-205-255-305-380 4.5X32-40-50-65-80-105-130-155-205-255-305-380 6X32-40-50-65-80-105-130-155-205-255-305-380 8X32-40-50-65-80-105-130-155-205-255-305-380 10X32-40-50-65-80-105-130-155-205-255-305-380 13X32-40-50-65-80-105-130-155-205-255-305-380 16X32-40-50-65-80-105-130-155-205-255-305-380 19X32-40-50-65-80-105-130-155-205-255-305-380 22X32-40-50-65-80-105-130-155-205-255-305-380 26X32-40-50-65-80-105-130-155-205-255-305-380 32X32-40-50-65-80-105-130-155-205-255-305-380 38X32-40-50-65-80-105-130-155-205-255-305-380 45X32-40-50-65-80-105-130-155-205-255-305-380 50X32-40-50-65-80-105-130-155-205-255-305-380 |