European EN SA/EN 10028-7, 1.4418 Specialsteel Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 1.4418 | Precipitation-Hardening | EN | European | Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels | 
| C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | N | Mo | W | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.20 | ≤0.50 | ≤1.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤12.50 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤remaining | ≤ ≥ | ≤ ≥ | ≤3.00 | 
| 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) | 
|---|---|---|---|---|---|---|
| 952 (≥) | 814 (≥) | 22 | 12 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 411 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.34 | - | |||
| 198 | 716 | - | 12.3 | 242 | - | ||
| 219 | - | 32 | 41.2 | 412 | 431 | 
Heat treated : 1712°C - 1182°C
 
                               1.4418 TTT Curves
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 1.4418 | |||
| 1.4418 | |||
| S41800 | |||
| S41800 | |||
| 418 | |||
| S41800 | |||
| AMS 6418F | |||
| UNS W50418 | |||
| UNS W21418 | |||
| SCM418 | |||
| SCM418H | |||
| SCM418TK | |||
| 418(S41800) | |||
| Type418(GreekAscollOy) | |||
| S41800 | |||
| UNS S41800 | |||
| 1.4418 | |||
| 1.4418 | |||
| GH4180 | |||
| GH4180 | 
| SA/EN 10028-7 | Specification for flat products made of steels for pressure purposes - Part 7: Stainless steels | SA-EN-10028-7.pdf | 
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