France AFNOR NF EN 10090, 1.4866 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | 1.4866 | AFNOR | France | Valve steels and alloys for internal combustion engines |
C | Si | Mn | P | S | Cr | Ni | Mo | W | N |
---|---|---|---|---|---|---|---|---|---|
0.28 -0.38 | 0.50 -1.50 | 1.50 -3.50 | ≤0.045 | ≤0.030 | 22.00 -24.00 | 7.00 -9.00 | ≤0.50 | ≤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) |
---|---|---|---|---|---|---|
762 (≥) | 759 (≥) | 41 | 14 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
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 |
---|---|---|---|---|---|---|---|
31 | - | - | 0.32 | - | |||
139 | 834 | - | 42.3 | 113 | - | ||
244 | - | 12 | 41.2 | 433 | 331 |
Heat treated : 1132°C - 1831°C
Grade | Standard | Country | Application |
---|---|---|---|
X33CrNiMnN23-8 | |||
X33CrNiMnN23-8 |
NF EN 10090 | Valve steels and alloys for internal combustion engines | NF-EN-10090.pdf |
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