HyMu 80
Material Data Sheet
HyMu 80, a magnetic shielding material, is suitable for use across a broad spectrum of applications. Featuring high permeability with low hysteresis loss, the material’s shielding properties make it a suitable option for protecting electronic components against stray or low-frequency magnetic fields.
HyMu 80 is an 80% nickel-iron-molybdenum alloy, as it’s is widely used in magnetic shielding applications, isolating electronic components against magnetic interference for optimal functionality.
high tensile
high yield strength
excellent weldability
Chemical Composition
| Element | Content(%) |
|---|---|
| Nickel, Ni | 80% |
| Iron, Fe | 15% |
| Molybdenum, Mo | 4.2% |
| Manganese, Mn | 0.50% |
| Silicon, Si | 0.35% |
| Carbon, C | 0.020% |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.74 g/cc | 0.316 lbs/in3 |
| Melting Point | 1454°C | 2649°F |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell B | 97 | 97 |
| Tensile Strength, Ultimate | 669 MPa | 97000 psi |
| Tensile Strength, Yield | 414 MPa | 60000 psi |
| Elongation at Break | 37% | 37% |
| Modulus of Elasticity | 232 GPa | 33600 ksi |
| Reduction of Area | 71% | 71% |
| Izod Impact | 163 J | 120 ft-lb |
Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| CTE, linear | 12.0 µm/m-°C | 6.67 µin/in-°F |
| Specific Heat Capacity | 0.494 J/g-°C | 0.118 BTU-in/hr-ft²-°F |
| Thermal Conductivity | 34.6 W/m-K | 240 BTU-in/hr-ft²-°F |
Applications
HyMu 80 is used in the following application areas:
- Transformer cores
- Telephone and recording devices
- Protecting sensitive medical equipment in an MRI facility
- Protecting electrical components from stray magnetic fields
- Tape wound toroids and lamentations where compactness and weight factors are important
Key Words: Permalloy, HY-MU 80, MAG 7904, MIL N 14411 C, COMP. 1 OR ASTM A753-78
