Monel 404 (UNS N04404 / W.Nr. 2.4867)
Monel 404 (UNS N04404 / W.Nr. 2.4867) is a nickel-copper alloy which is used primarily in electrical and electronic application. Similar to Monel 401, the chemical composition of Monel 404 is carefully adjusted to provide a very low curie temperature, low permeability, and good brazing characteristics.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Monel 404 | – | – | Monel 404 | N04404 | – | 2.4867 | – | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Ni | Cu | Al | Fe |
Monel 404 | ≤0.15 | ≤0.10 | ≤0.10 | ≤0.020 | ≤0.030 | 52.0-57.0 | Bal | ≤0.05 | ≤0.50 |
Typical Physical and Mechanical Properties (RT, Annealed)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
8.91 | 1300-1350 | 550 | 185 | 36 | / |
Available Products and Specifications
Rod, Bar, Wire and Forgings | ASTM B164, ASME SB164, DIN 17752 |
Plate, Sheet and Strip | DIN 17750 |
Pipe and Tube | DIN 17751 |
Welding Product | – |
Others | ASTM B366, ASME SB366, DIN 17743 |
Features
Monel 404 has low magnetic permeability and low Curie temperature. Because its low magnetic permeability is not significantly affected by processing and fabrication, it is particularly suitable for electronic parts.
Applications
- Electronic and electrical devices
- Marine fixtures
- Chemical processing equipment
- Gasoline tanks
- Boiler feed water heaters
- Heat exchangers