Oil-Hardening Tool Steel
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 1.10 | 1.30 | ||
| Si | 0.10 | 0.60 | ||
| Mn | 0.20 | 1.00 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 0.35 | 0.85 | ||
| Mo | - | 0.30 | ||
| V | 0.15 | 0.40 | ||
| W | 1.00 | 2.00 | ||
| Ni＋Cu | - | 0.75 |
Oil-Hardening Tool Steel
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 612 (≥) | 912 (≥) | 12 | 41 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 311 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 687 (≥) | 845 (≥) | 22 | 44 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 137 | 717 | 489 |
We can customize the production of O7 grade, contact us for the best solution.
–sales@specificsteel.com