Germany DIN 1.4866 Valve steel and 1.4866 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Special Steel | 1.4866 | DIN | Germany | Valve steel | 
| 1.4718 | |||||
| X40CrSiMo10-2 | |||||
| 1.4731 | |||||
| X80CrSiMoW15-2 | |||||
| 1.4732 | |||||
| 1.4732 | |||||
| X85CrMoV18-2 | |||||
| 1.4748 | |||||
| 1.4785 | |||||
| X60CrMnMoVNbN21-10 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | W(%) | N(%) | 
|---|---|---|---|---|---|---|---|---|---|
| 0.28-0.38 | 0.50-1.00 | 1.50-3.50 | Max 0.045 | Max 0.030 | 22.00-24.00 | 7.00-9.00 | Max 0.50 | Max 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) | 
|---|---|---|---|---|---|---|
| 247 (≥) | 451 (≥) | 42 | 22 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 | 
| 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 | - | - | 0.13 | - | |||
| 315 | 247 | - | 42.3 | 444 | - | ||
| 682 | - | 42 | 32.2 | 411 | 313 | 
Heat treated : 1255°C - 1167°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 1.4866 | DIN | Germany | Valve steel | 
| 1.4866 | AFNOR | France | Valve Internal Combustion Engines steel (NF-EN 1009-1998) | 
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