Q10 steel:
toughness, strength and thermical shock resistant

Q10 is a Cr-Mo-V alloyed hot work tool steel with very good high temperature strength characteristics and maximum toughness.

This grade is also characterised by good thermal shock resistance.

  • Maximum toughness.
  • Strength by high temperature.
  • Thermical schock resistance.
  • Extrusion presses with very long lifetime with heavy duty inner linings and press stems
  • Drop forging
  • Hot forming.

Physical properties of Q10

Temperature in °C20-10020-20020-40020-600
Thermal expansion in 10-6m/m x K10.311.312.613.0
Temperature in °C20200400
Thermal conductivity in W/m x K29.831.031.4
Temperature in °C20
Density in g/cm37.8
Temperature in °C20
E module in GPa214

Heat treatment

Soft annealingTemperature: 820 – 840 °C, 4 – 6 hrs.
Cooling: soft furnace cooling
Hardness: max. 220 HB
HardeningTemperature: 1010 – 1020 °C
Cooling Interrupt oil or polymer cooling at 230 – 280 °C or vacuum hardening
TemperingTemperature: 540 – 680 °C
Hardness: see tempering diagram
Preheat before useTemperature 150 – 350 °C depending on area of application

Graphs and datasheets of Q10




Do you want to know more about Q10 steel? Ask us for advice.

Scroll to Top