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High speed steel feature:
High Speed Tool Steels M2/1.3343/2722/SKH51/W6Mo5Cr4V2
Flat tool steels
M2 round bar: 12mm-50mm rolled
50mm-120mm forged
100mm-180mm forged
M2 flat steel: T: 20mm-100mm, W: 60mm-410mm.
Forging: 1.100~900C
Anneal: Heat up to 800-850C and stay for 2-4h in this temperature to cool slowly in furnace;
Quenching: Pre-heat up to 550-600C; Then heat up to 950C; And again 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. )
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.
Hardness: More than HRC63C.
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.
1.2080 Tool Die Flat
