High-Speed Tool Steel
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.85 | 0.92 | ||
| Si | 0.15 | 0.50 | ||
| Mn | 0.15 | 0.40 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 3.50 | 4.00 | ||
| Mo | 9.00 | 10.00 | ||
| V | 1.00 | 1.35 | ||
| W | 1.30 | 2.10 | ||
| Co | 7.75 | 8.75 |
High-Speed 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) |
|---|---|---|---|---|---|---|
| 848 (≥) | 178 (≥) | 32 | 41 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 133 |
| 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 |
|---|---|---|---|---|---|---|---|
| 877 (≥) | 281 (≥) | 41 | 31 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 213 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 345 | 962 | 242 |
We can customize the production of M33 grade, contact us for the best solution.
–sales@specificsteel.com