tool steel M2 / 1.3343 / SKH9

tool steel M2 / 1.3343 / SKH9Roundsize: dia 50-500mm, length 3-6mFlat sizes: Thickness 20-100mm width 200-300mm length2-4m Chemical composition :(%)CSiMnWMoCrVSP0.80 0.90≤0.40≤0.405.50 6.754.50 5.503.80 4.401.75 2.20≤0.030≤0.030 1.Anneal: Heat up to 800-850C and stay for 2-4h in this temperature to cool slowly in furnace; 2.Quenching: Pre-heat up to 550-600C; Then heat up to 950C; And again 3.heat up to: A: 1, 220 1250 C; B: 1, 200C 1230C; Quench in oil but the temperature of oil has to be kept 40-60C. (a. Common tools; B. Complex tools requiring for flexibility. )4.Backfire: Heat up to 550-570C and stay in this temperature; Then keep still in air for cooling; To back fire has to repeat for twice. 5.Hardness: More than HRC63C. 6.Delivery condition: Hot forged, Heat-treatment ( Normalized / Annealed / Quenched / tempered), Rough machining 7.Application: This steel is of high speed tungsten steel, adapted for making strong cutting tools of wear resistance, various tools of impact resistance, high grade punching dies, screw dies, complex tools requiring for flexibility, milling cutters, aiguilles and so on. We are tool steel manufacturer, we can supply kinds of tool steel bars with the competitive price and high-quality service,.welcome to contact us when your are free.