France AFNOR NF EN 10028-4, NF EN 10216-4, NF EN 10222-3, NF EN 10269, X12Ni5 Specialsteel Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | X12Ni5 | AFNOR | France | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| C | Si | Mn | P | S | Cr | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|
| ≤0.15 | ≤0.35 | 0.30 -0.80 | ≤0.020 | ≤0.010 | ≤ ≥ | 4.75 -5.25 | ≤ ≥ | ≤0.05 |
| 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) |
|---|---|---|---|---|---|---|
| 412 (≥) | 214 (≥) | 13 | 43 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 |
| 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 |
|---|---|---|---|---|---|---|---|
| 34 | - | - | 0.41 | - | |||
| 778 | 349 | - | 43.3 | 321 | - | ||
| 467 | - | 43 | 31.2 | 224 | 332 |
Heat treated : 1164°C - 1163°C
| NF EN 10028-4 | Flat products made of steels for pressure purposes - Part 4: Nickel alloy steels with specified low temperature properties | NF-EN-10028-4.pdf |
| NF EN 10216-4 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 4: Non-alloy and alloy steel tubes with specified low temperature properties | NF-EN-10216-4.pdf |
| NF EN 10222-3 | Steel forgings for pressure purposes - Part 3: Nickel steels with specified low temperature properties | NF-EN-10222-3.pdf |
| NF EN 10269 | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties | NF-EN-10269.pdf |
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