It is a hot work steel that does not lose its mechanical properties and
therefore wear resistance at high temperatures. It has very good thermal
stability and toughness. Limited cooling possible.
Steel has high strength at elevated temperatures, high hot wear resistance,
good toughness, thermal conductivity and is resistant to hot cracking.
Limited water cooling possible. Similar to AISI H13.
It is a standard material in hot forming dies. It is used in areas such as
extrusion tools, forging molds, aluminum injection molds, hot cutting blades,
plastic molds. Since it has high impact resistance, it can also be used in thick
sheet metal cutting dies when necessary.
Carbon |
Chromium |
Molybdenum |
Vanadium |
C |
Cr |
Mo |
V |
0,40 |
5,30 |
1,40 |
1,00 |
Temperature |
Cooling |
Hardness |
|
Soft annealing |
750 – 800 °C |
Furnace |
229 HB |
Stress Relief Annealing |
600 – 650°C |
Furnace |
|
Hardening |
1020 – 1060°C |
oil, pressure gas (N2), air or hot bath 500 – 550°C |
see tempering diagram |
Hardness |
46 – 54 |
HRC |
Thermal Expansion Coefficient |
10,8 – 13,5 |
1/K * 10-6 |
Thermal Conductivity (20°C) |
25,6 |
W/mK |
Density |
7,85 |
g/cm3 |
