M V10 PM Powder metallurgical steel

Designation

Indicatory analysis:

Strength:

max. 280 HB
(≈ max. 960 N/mm²)

Thermal conductivity at 100 °C:

20 W/m K

Character:

Powder metallurgical high-speed steel with optimal dimensional accuracy after the heat treatment, highest abrasive wear resistance and excellent toughness, good machinability through a homogeneous microstructure

Application:

Blocks for eroding, dies and cutting punches with extreme requirements,
fine blanking punches, pressing punches for sinter press tools

Treatment by

highly suitable:
Polishing, nitriding, EDM, coating

Heat treatment:

Soft annealing:
880 to 900 °C, about 2 to 5 hours
slow controlled cooling of 10 to 20 °C per hour
to about 600 °C; further cooling in air, max. 280 HB

Hardening:
Curing temperature: see tempering chart
quenching in oil/compressed gas/air/hot bath
obtainable hardness: 60-63 HRC

Tempering:
slow heating to tempering temperature (to avoid forming of cracks)
immediately after hardening;
triple tempering is recommended

Tempering chart:

TechnicalTip

• Due to the high vanadium content the steel is enriched with small, hard carbides. This guarantees optimum edge stability with maximum abrasive wear resistance.
• Ideally suitable for highly stressed parts
  with complicated geometries.

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