Engine poppet valve information report
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.47 | 0.55 | ||
| Si | 1.00 | 2.00 | ||
| Mn | - | 0.60 | ||
| Cr | 7.50 | 9.50 | ||
| Ni | - | 0.60 | ||
| Mo | - | - | ||
| Co | - | - | ||
| W | - | - | ||
| Al | - | - | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | - | ||
| P | - | 0.03 | ||
| S | - | 0.03 |
Engine poppet valve information report
| 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) |
|---|---|---|---|---|---|---|
| 156 (≥) | 877 (≥) | 33 | 43 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
| 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 |
|---|---|---|---|---|---|---|---|
| 947 (≥) | 556 (≥) | 21 | 22 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 323 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 718 | 629 | 177 |
We can customize the production of SUH 11M grade, contact us for the best solution.
–sales@specificsteel.com