International ISO ISO 683-15 (1992), X33CrNiMnN23-3 Specialsteel Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | X33CrNiMnN23-3 | Austenite | ISO | International | Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines |
| C | Si | Mn | P | S | Cr | Mo | Ni | W | N |
|---|---|---|---|---|---|---|---|---|---|
| 0.28 -0.38 | 0.50 -1.00 | 1.50 -3.50 | ≤0.050 | ≤0.030 | 22.00 -24.00 | ≤0.50 | 7.00 -9.00 | ≤0.50 | 0.25 -0.35 |
| 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) |
|---|---|---|---|---|---|---|
| 774 (≥) | 239 (≥) | 31 | 32 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 214 |
| 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 |
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.33 | - | |||
| 838 | 368 | - | 41.3 | 234 | - | ||
| 164 | - | 44 | 42.2 | 343 | 442 |
Heat treated : 1973°C - 1654°C
| ISO 683-15 (1992) | Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines | ISO-683-15-(1992).pdf |
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