USA SAE SAE J 775 (2004), SUH 11M Specialsteel Engine poppet valve information report and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | SUH 11M | Precipitation-Hardening | SAE | USA | Engine poppet valve information report | 
| C | Si | Mn | Cr | Ni | Mo | Co | W | Al | Cu | Ti | Fe | P | S | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.47 -0.55 | 1.00 -2.00 | ≤0.60 | 7.50 -9.50 | ≤0.60 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤0.03 | ≤0.03 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 159 (≥) | 173 (≥) | 33 | 31 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.11 | - | |||
| 948 | 643 | - | 23.3 | 341 | - | ||
| 454 | - | 33 | 11.2 | 441 | 111 | 
Heat treated : 1474°C - 1175°C
| SAE J 775 (2004) | Engine poppet valve information report | SAE-J-775-(2004).pdf | 
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