High-Speed Tool Steel
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 1.75 | 1.85 | ||
| Si | 0.20 | 0.45 | ||
| Mn | 0.25 | 0.50 | ||
| Cr | 3.50 | 4.25 | ||
| Mo | 6.00 | 6.75 | ||
| V | 4.50 | 5.25 | ||
| W | 12.00 | 13.00 | ||
| S | 0.05 | 0.09 |
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) |
|---|---|---|---|---|---|---|
| 784 (≥) | 969 (≥) | 31 | 42 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 341 |
| 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 |
|---|---|---|---|---|---|---|---|
| 636 (≥) | 443 (≥) | 11 | 12 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 354 | 666 | 191 |
We can customize the production of M61 grade, contact us for the best solution.
–sales@specificsteel.com