Powder-metallurgical high-speed steel with high Co and carbide content,
Very fine carbide distribution, homogenous microstructure within whole cross-section,
High hardness and wear resistance at elevated temperatures.
Description
APPLICATION AREAS
APPLICATION AREAS
Machining tools with high thermal load, cutting and deep
drawing tools with excellent wear resistance.
Technical Details
Technical Details
Chemical Composition
Carbon |
Chromium |
Wolfram |
Molybdenum |
Vanadium |
Cobalt |
C |
Cr |
W |
Mo |
V |
Co |
2,30 |
4,20 |
6,50 |
7,00 |
6,50 |
10,50 |
Heat treatment:
Temperature |
Cooling |
Hardness |
|
Soft annealing |
870 – 900 °C |
Furnace |
340 HB |
Stress relief annealing |
600 – 650 °C |
Furnace |
|
Hardening |
1100 – 1190 °C |
oil, pressure gas (N2), air or hot bath 500 – 550°C |
|
Tempering |
500 – 600 °C |
3 Times |
62 – 68 HRC |
Mechanical Properties
Hardness |
64 – 68 |
HRC |
Physical Properties
Thermal Expansion Coefficient |
10,1 – 10,8 |
1/K * 10-6 |
Thermal Conductivity (20°C) |
24,5 |
W/mK |
Density |
8 |
g/cm3 |
