France AFNOR NF EN 10090, 1.4718 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 | 1.4718 | AFNOR | France | Valve steels and alloys for internal combustion engines | 
| C | Si | Mn | P | S | Cr | Ni | Mo | 
|---|---|---|---|---|---|---|---|
| 0.40 -0.50 | 2.70 -3.30 | ≤0.60 | ≤0.040 | ≤0.030 | 8.00 -10.00 | ≤0.50 | ≤ ≥ | 
| 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) | 
|---|---|---|---|---|---|---|
| 511 (≥) | 331 (≥) | 42 | 11 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 | 
| 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 | - | |||
| 284 | 113 | - | 32.3 | 231 | - | ||
| 393 | - | 21 | 11.2 | 441 | 232 | 
Heat treated : 1679°C - 1935°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| X45CrSi9-3 | 
| NF EN 10090 | Valve steels and alloys for internal combustion engines | NF-EN-10090.pdf | 
Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...
Rfq.: sales@longhaisteel.com