M35 HIGH SPEED STEEL (HSS-Co 5%)

M35 HIGH SPEED STEEL (HSS-Co 5%)

Applications: This kind steel is suitable for conditions involving thermal stresses and discontinuous cutting. Heavy-duty milling cutters of all kinds, gear cutter, highly stressed twist drills and taps, profile knives, machining for high-strength material, broaches.

Characteristic: It is one the W-Mo Co HSS grade with good cutting character. The red hardness ,hot hardness and wearing resistance are all better than W6Mo5Cr4V2

Chemical Composition: (%) C:0.91 W:6.30 Mo:4.95  Cr:4.15  V:1.90 Co:5.0  Mn:0.30  Si:0.35   P≤0.03   S≤0.02

Delivery status: Soft annealed max.270HB

Heat Treatment:

Hardening Temperature:1180-1220℃

Quenching Medium: oil & salt bath

Tempering Temperature:540-560℃

Tempering Times:3 times

Tempering Hardness:64-67HRC