USA UNS NV4(3140) Specialsteel Steel for intake valves and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | NV4(3140) | UNS | USA | Steel for intake valves |
| C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|
| 0.38 -0.43 | 0.15 -0.30 | 0.70 -0.90 | ≤ 0.04 | ≤ 0.04 | 0.35 -0.65 | 1.10 -1.40 |
| 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) |
|---|---|---|---|---|---|---|
| 191 (≥) | 367 (≥) | 41 | 14 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 413 |
| 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 |
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.34 | - | |||
| 216 | 782 | - | 14.3 | 414 | - | ||
| 739 | - | 23 | 33.2 | 323 | 114 |
Heat treated : 1963°C - 1536°C
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