Steel for intake valves
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.55 | |||
| Si | 1.50 | |||
| Mn | 0.40 | |||
| P | ||||
| S | ||||
| Cr | 8.00 | |||
| Mo | 0.75 |
Steel for intake valves
| 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) |
|---|---|---|---|---|---|---|
| 446 (≥) | 411 (≥) | 23 | 41 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 114 |
| 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 |
|---|---|---|---|---|---|---|---|
| 448 (≥) | 248 (≥) | 14 | 11 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 246 | 193 | 836 |
We can customize the production of HNVl grade, contact us for the best solution.
–sales@specificsteel.com