USA UNS SAE J 470 (1976), Kovar Specialsteel Wrought Nickel and Nickel-Related Alloys and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | Kovar | Precipitation-Hardening | UNS | USA | Wrought Nickel and Nickel-Related Alloys | 
| C | Si | Mn | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co | W | Mg | Zr | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.04 | ≤0.20 | ≤0.50 | ≤29.00 | ≤0.20 | ≤0.10 | ≤0.20 | ≤0.10 | ≤53.00 | ≤0.20 | ≤17.00 | ≤ ≥ | ≤0.10 | ≤0.10 | 
| 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) | 
|---|---|---|---|---|---|---|
| 934 (≥) | 242 (≥) | 32 | 41 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.42 | - | |||
| 674 | 672 | - | 13.3 | 343 | - | ||
| 347 | - | 33 | 14.2 | 213 | 424 | 
Heat treated : 1577°C - 1288°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| KOVAR | 
| SAE J 470 (1976) | Wrought Nickel and Nickel-Related Alloys | SAE-J-470-(1976).pdf | 
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