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M V10 PM Powder metallurgical steel

Designation

AISI:

A11 (PM)

Indicatory analysis:

C	2.45
Si	0.90
Mn	0.50
Cr	5.20
Mo	1.30
V	9.75

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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