Type O1 oil-solidifying cold work steel comprises of chromium, manganese, and tungsten and is moderately cheap. A universally useful oil hardening tool steel reasonable for back up and punch holder plates. Components of this grade incorporate a decent mix of high surface hardness and toughness after hardening and tempering. Oil solidifying tool steel for assembling of cutting instruments, blanking and punching devices. Machine knives, threading tools.
| Element | Min | Max |
|---|---|---|
| Carbon, C | 0.90 | 1.05 |
| Manganese, Mn | 1.00 | 1.oo |
| Silicon, Si | 0.15 | 0.35 |
| Molybdenum, Mo | — | — |
| Chromium, Cr | 0.50 | 0.70 |
| W | 0.50 | 0.70 |
| V | 0.5 | 0.15 |
| Co | — | — |
| Properties | Metric | Imperial |
|---|---|---|
| Density(hardened to 62 HRC) | 7.81 g/cm 3 | 0.282 lb/in 3 |
| Density (@399°C/ 750°F, hardened to 62 HRC) | 7.70 g/cm 3 | 0.278 lb/in 3 |
| Density (@191°C/ 375°F, hardened to 62 HRC) | 7.75 g/cm 3 | 0.280 lb/in 3 |
| Melting point | 1421°C | 2590°F |
| Properties | Conditions |
||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal expansion | 10.6 x 10 -6 /ºC | 20-260 | – |