AISI O-1
Description
This grade gives higher hardness values than AISI O-1 and a better wear-resistance owing to tungsten presence, whereas preserving a good toughness.
Equivalent Grades |
|||||
| American | German | Japanese | China | Poland | |
|---|---|---|---|---|---|
| (W.Nr) | (DIN) | ||||
| AISI O-1 | 1.2510 | 100MnCrW4 | SKS3 | 9CrWMn | - |
Chemical Composition (AISI O-1) |
|||||||||||
| C | Si | Mn | P | S | Cr | Mo | V | W | Co | Ni | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AISI O-1 | |||||||||||
Properties
Thermal Conductivity at °C | 20 | 350 | 700 |
W/(m • K) | 33.8 | 32.2 | 31 |
Applications
- Blanking and stamping dies for cutting sheets
- Threading tools
- Drills
- Broaches
- Gauges
- Measuring tools
- Plastic moulds
- Shear blades
- Guide rails
Heat Treatment
Soft annealing °C | Cooling | Hardness HB |
750 - 780 | Furnace | max. 230 |
Stress-relief annealing °C | Cooling |
approx. 650 | Furnace |
Hardening °C | Quenching | Hardness after quenching HRC |
780 - 820 | Air, oil or saltbath, 180-220 °C | 65 |
| Tempering °C after quenching | 100 | 200 | 300 | 400 |
| HRC | 63 | 62 | 58 | 53.5 |
Tempreing Curve:
