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Cts m4 pm

DESCRIPTION

CTS M4 PM is a high vanadium special purpose high speed steel exhibiting better wear resistance and toughness than M2 or M3 in cold work punches, die inserts and cutting applications involving high speed and light cuts.

CHEMICAL COMPOSITION

C - 1.45
Cr - 4.2
Mo - 5.0
W - 5.8
V - 4.1

STANDARDS

Europe: HS 6-5-4
USA: M4

DELIVERY HARDNESS

Soft annealed max. 260 HB

APPLICATIONS

HEAT TREATMENT

GUIDELINES FOR HARDENING

Tempering temperature
Hardness after hardening, quenching and
tempering 3x1 hour

PHYSICAL PROPERTIES

Modulus of Elasticity 30 psi x 106…(207 GPa)
Density 0.294 lb/ln3…(7861kg/M3)
Machinability 35-40% of 1% carbon steel

PROCESSING

CTS M4PM can be worked as follows:

GRINDING

During grinding, local heating of the surface, which may alter the temper, must be avoided. Grinding wheel makers can furnish advice on the choice of grinding wheels.

SURFACE TREATMENT

The steel grade is a good substrate material for PVD and CVD coating. If nitriding is demanded a small zone of 2-15 μm is recommended. The steel grade can also be steam-tempered if so desired.

 

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