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M W10PM powder metallurgical steel

DESIGNATION:

EN: HS 10-2-5-8

INDICATORY ANALYSIS:

C	1.6
Cr	4.8
Mo	2.0
V	5.0
W	10.5
Co	8.0

Strength:

max. 285 HB
(≈ max. 970 N/mm²)

THERMAL CONDUCTIVITY AT 100°C:

26 W/m K

CHARACTER:

High-speed steel produced by powder metallurgy with highest compressivestrength, high adhesive wear resistance and excellent toughness, very high workinghardness possible

APPLICATION:

Blocks for eroding, dies, cutting punches and cutting tools for extremely highrequirements, fine blanking punches, embossing tools, cold solid forming

TREATMENT BY:

Polishing:
best metallurgical properties for mirror finish

Nitriding:
highly suited for nitriding

EDM:
highly suited

Coating:
highly suited

HEAT TREATMENT:

Soft annealing:
870 to 900°C for about 2 to 5 hours
slow controlled cooling inside the furnace 10 to 12°C per hour to about 550°C,
further cooling in air, max. 300 HB

Hardening:
curing temperature: see tempering chart
quenching in oil/compressed gas/air/hot bath
obtainable hardness: 68 HRC

Tempering:
slow heating to tempering temperature (in order to avoid formation of cracks)
immediately after hardening;
keep at tempering temperature for at least 1 hour
four tempering cycles are recommended, with cooling to room temperature in
between

TEMPERING CHART:

TECHNICAL TIP:

Retains hardness at high temperatures due to highcobalt content
Excellent for PVD and CVD coating without risk ofdimensional changes, as the steel is tempered atmore than 520°C

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