404 Monel®
A Nickel Copper Alloy
Application
404 Monel is used in electronic devices. It has:
- low permeability
- good brazing characteristics
- high strength
- extremely corrosion resistant
Chemical Composition (Nominal %)
52.57 Ni, 0.5 Fe max, 0.02 Zn max, 0.1 Mn max
Physical Characteristics
Density
.323 lb/in³
Electrical Resistivity
ohm circ mil/ft at 70°F −294
Thermal Conductivity
BTU in/ft² ⋅ h ⋅ °F −133
Coefficient of Thermal Expansion
in/in/°F ⋅ 10
- 70° - 200°F
- 7.4
- 70° - 500°F
- 8.5
- 70° - 1000°F
- 9.2
- 70° - 1500°F
- 9.8
Tempers
| Rockwell 30T | Grain Size (nominal) | Tensile KSI* | |
| Annealed | 31 - 46 40 - 58 |
0.035 mm 0.015 mm |
|
| ¼ hard | 61 - 71 | 58 - 72 | |
| ½ hard | 67 - 74 | 66 - 80 | |
| hard | 72 - 76 | 75 - 88 | |
| extra hard | 73 - 77 | 80 - 92 | |
| spring | 74 - 77 | 84 - 94 |
Sheet/Coil Sizes
Thickness
.002" - .375"
Width in coil (up to .062" thickness only)
8.00" max
Width in plate & straight lengths
12.00" max