France AFNOR NF EN 10090, X40CrSiMo10-2 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 | X40CrSiMo10-2 | AFNOR | France | Valve steels and alloys for internal combustion engines |
C | Si | Mn | P | S | Cr | Ni | Mo |
---|---|---|---|---|---|---|---|
0.35 -0.45 | 2.00 -3.00 | ≤0.80 | ≤0.040 | ≤0.030 | 9.50 -11.50 | ≤0.50 | 0.80 -1.30 |
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) |
---|---|---|---|---|---|---|
229 (≥) | 443 (≥) | 33 | 12 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 123 |
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 | - | - | 0.12 | - | |||
819 | 196 | - | 44.3 | 421 | - | ||
255 | - | 32 | 23.2 | 431 | 333 |
Heat treated : 1314°C - 1654°C
Grade | Standard | Country | Application |
---|---|---|---|
X40CrSiMo10-2 | |||
X40CrSiMo10-2 |
NF EN 10090 | Valve steels and alloys for internal combustion engines | NF-EN-10090.pdf |
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