PW812 steel
Steel PW812:
good toughness and tempering ability
What?
PW812: cold work tool steel with high vanadium and tungsten content. Good secondary tempering ability, high toughness.
Material properties
- High toughness.
- Good to harden.
Application
- Shear blades.
- Cutting tools.
- Guide and profiled rollers with high requirements in terms of toughness and wear resistance.
- Bending tools.
- Punches.
Physical properties of PW812
| Temperature in °C | 20-100 | 20-200 | 20-400 |
|---|---|---|---|
| Thermal expansion in 10-6m/m x K | 11.0 | 12.2 | 12.7 |
| Temperature in °C | 20 | ||
| Thermal conductivity in W/m x K | 24.9 |
Heat treatment
| Soft annealing | Temperature: 800 – 840 °C, 4 – 6 hrs |
|---|---|
| Cooling: slow furnace cooling | |
| Hardness: max. 285 HB | |
| Hardening | Temperature: 1100 – 1120 °C |
| Cooling Air, salt bath 500 – 550 °C oil, polymer, vacuum | |
| Tempering | Temperature: 510 – 600 °C |
| Hardness: see tempering curve |
Graphs and datasheets of PW812
Continue time-temperature-transformation
Tempering
