Project Description
Monel 401 (UNS N04401 / W.Nr. 2.0842)
Monel 401 (UNS N04401 / W.Nr. 2.0842) is used primarily in specialized electrical and electronic applications. Monel 401 is readily autogenously welded by the gas-tungsten-arc process. Resistance welding is a very satisfactory method for joining the material. It also exhibits good brazing characteristics.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
Monel 401 Cuprothal 49 MWS-294 Constantan | CuNi44 NC050 | МНМц43-0.5 Копель | Monel 401 Alloy 294 | N04401 C72150 | CuNi44Mn1 | 2.0842 | – | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Ni | Cu | Fe |
Monel 401 | ≤0.10 | ≤0.25 | ≤2.25 | ≤0.020 | ≤0.015 | 40.0-45.0 | Bal | ≤0.75 |
Typical Physical and Mechanical Properties (RT, Annealed)
Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
8.91 | 1280-1300 | 480 | 250 | 30 | / |
Available Products and Specifications
Rod, Bar, Wire and Forgings | ASTM B164/ASME SB164, DIN 17752-17754 |
Plate, Sheet and Strip | ASTM B127/ASME SB127, DIN 17750 |
Pipe and Tube | ASTM B163/ASME SB163, ASTM B725/ASME SB725, ASTM B775/ASME SB775, ASTM B751/ASME SB751, DIN17751 |
Welding Product | – |
Others | ASTM B366/ASME SB366(Fittings), DIN 17743 |
Features
Monel 401 is a ductile Copper Nickel alloy with a very low coefficient of electrical resistivity and resistance to a wide variety of corrosive conditions. Like with commercially pure Nickel, Monel 401 is low in strength in the annealed condition and can only be cold worked to a maximum of 120 KSI.
Applications
- Wire wound resistors
- Bimetal contacts
- Electric and electronic applications
- Marine engineering
- Chemical and hydrocarbon processing equipment
- Gasoline and freshwater tanks
- Crude petroleum stills
- De-aerating heaters
- Boiler feed water heaters and other heat exchangers
- Valves, pumps, shafts, fittings, and fasteners
- Industrial heat exchangers
- Chlorinated solvents
- Crude oil distillation towers