France AFNOR NF EN 10084, 1.6657 Specialsteel Case hardening steels - Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 1.6657 | Martensite | AFNOR | France | Case hardening steels - Technical delivery conditions |
| C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| 0.11 -0.17 | ≤0.40 | 0.30 -0.60 | ≤0.035 | ≤0.035 | 0.80 -1.10 | 0.10 -0.25 | 3.00 -3.50 |
| 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) |
|---|---|---|---|---|---|---|
| 627 (≥) | 683 (≥) | 24 | 13 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 413 |
| 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 |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.12 | - | |||
| 778 | 786 | - | 41.3 | 112 | - | ||
| 766 | - | 33 | 32.2 | 222 | 241 |
Heat treated : 1655°C - 1617°C
| Grade | Standard | Country | Application |
|---|---|---|---|
| 14NiCrMo13-4 |
| NF EN 10084 | Case hardening steels - Technical delivery conditions | NF-EN-10084.pdf |
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