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
The MONEL 404 alloy is used in the following applications:
Capsules for transistors
Ceramic to metal sealing
Chemical composition
% | Ni | Cu | Fe | C | Mn | Si | S | Al |
max | 52-57.0 | balance | 0.50 | 0.15 | 0.10 | 0.10 | 0.024 | 0.05 |
PHYSICAL PROPERTIES
Density: 0.322 lbs/in3, 8.91 g/cm3
Electrical Resistivity: ohm-cir mil/ft (microhm-m)
At 70 °F (21 °C): 294 (0.498)
Specific Heat: Btu/lb-°F (J/g-°C)
At 70 °F (21 °C): 0.0989 (0.414)
Thermal Conductivity: BTU/hr/ft2/ft/°F (W/m-°C)
At 70 °F (21 °C)-133 (21)
Mean Coefficient of Thermal Expansion: µin/in-°F,(µm/m°C)
70 - 200 °F (21 - 93 °C) 7.39 (13.3)
70 - 572 °F (21 - 300 °C) 8.50 (15.3)
70 - 1000 °F (21 - 539 °C) 9.22 (16.6)
70 - 1500 °F (21 - 816 °C) 9.78 (17.6)
Modulus of Elasticity: ksi (MPa) in Tension
24.5 X 103 (169 X 103)
Magnetic Permeability, H = 200 Oersteds: Annealed 1.0017 max
Melting Point: 2370 °F (1300 °C)
Machinability
Conventional machining techniques used on iron alloys may be used for this alloy.
Welding
Alloy 404 is can be welded using common welding techniques.
Hot working
This alloy cannot be hot worked.
Forging
Alloy 404 can be forged.
Cold working
Cold working may be done using standard tooling and soft die materials for better finish.
Annealing
MONEL 404 alloy should be annealed at 760°C (1400°F) for one hour.
Welcome send inquiry to chinese factory Fushun Specialsteel
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