Monel 404
Designated as UNS N04404, Monel 404 (also known as “Alloy 404”) is a nickel-copper alloy which is used primarily in electrical and electronic application. Similar to Monel 401, the chemical composition of Alloy 404 is carefully adjusted to provide a very low curie temperature, low permeability, and good brazing characteristics.
Monel 404 wires, UNS N04404.
1. Chemical Composition of Monel 404
| The Chemical Composition of Monel 404, % | |
|---|---|
| Nickel | 52.0-57.0 |
| Carbon | ≤0.15 |
| Manganese | ≤0.10 |
| Iron | ≤0.50 |
| Sulfur | ≤0.024 |
| Silicon | ≤0.10 |
| Copper | Balance |
| Aluminum | ≤0.05 |
2. Physical Properties of Monel 404
| Density | Specific Heat | Thermal Conductivity | Electrical Resistivity | Curie Temperature |
|---|---|---|---|---|
| g/cm3 | J/kg. °C | W/m.°C | µΩ·m | °F(annealed) |
| 8.91 | 414 | 21.0 | 0.498 | -110 |
3. Mechanical Properties of Monel 404
| Tensile Strength, min. | Yield Strength, min. | Elongation, min. | ||
|---|---|---|---|---|
| Mpa | ksi | Mpa | ksi | % |
| 483 | 70 | 172 | 25 | 35 |
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