high speed steel M42(W2Mo9Cr4VCo8) 1.Formula:include Co 2.Size: 2 to 200mm 3.Application :cutting tools 4.HRC 66~68

high speed steel M42(W2Mo9Cr4VCo8)

Anneal temperature: 860-880

Relief annealing temperature: 720-760

Hardening temperature: 1160-1190

Hardening medium: salt bath under 600,aslo use oil cooling or air cooling

Normal temper temperature: 540-560RC Rockwell Hardness after hardening and temper: 66-68

Characteristic:High performance tungsten-molybdenum high speed steel, Excellent performance of hardness, red hardness, thermoplasticity, machinability. Only weak in toughness

Application: used in various of complicated tools,e.g pricision broaches, form cutter,professional lathe tool and various high hardness tools.