Valve steels and alloys for internal combustion engines
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.45 | 0.55 | ||
| Si | - | 0.45 | ||
| Mn | 8.00 | 10.00 | ||
| P | - | 0.045 | ||
| S | - | 0.030 | ||
| Cr | 20.00 | 22.00 | ||
| Ni | 3.50 | 5.50 | ||
| Mo | - | - | ||
| N | 0.40 | 0.60 | ||
| W | 0.80 | 1.50 |
Valve steels and alloys for internal combustion engines
| 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) |
|---|---|---|---|---|---|---|
| 671 (≥) | 742 (≥) | 42 | 33 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 243 |
| 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 |
|---|---|---|---|---|---|---|---|
| 647 (≥) | 267 (≥) | 33 | 31 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 272 | 645 | 888 |
We can customize the production of 1.4882 grade, contact us for the best solution.
–sales@specificsteel.com