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Formula: Ni 80/ Fe20
Form: Rod
Material: Nickel/Iron
Commodity: Alloys
Temper:
As Drawn
Nickel-Iron Alloy Rod (Ni80/Fe20) combines high magnetic permeability, low coercivity, and thermal stability in a machinable bulk form suitable for precision electromagnetic components. The Ni80/Fe20 composition offers low hysteresis loss and controlled expansion, making it valuable in sensitive magnetic circuits, aerospace electronics, and transformer core construction. Industries use these rods in manufacturing magnetic shielding assemblies, actuators, and low-noise electromagnetic devices. Specific applications include crafting precision magnetic yokes for electron optics, producing stable magnetic cores for instrumentation transformers, and fabricating high-sensitivity magnetic couplings. In research, Ni80/Fe20 rods enable investigation into domain wall mobility, stress-magnetization coupling, and advanced magnetic circuit prototypes. Their combination of mechanical workability and superior magnetic properties ensures ongoing use in high-performance industrial and research applications.
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Rod
| Diameter | =<10mm | ±10% |
|---|---|---|
| Diameter | >10mm | ±5% |
Material Properties for Alloys
Magnetic Properties
| Element | Value |
|---|---|
| Initial permeability | 30000 |
| Maximum permeability | 400000 |
| Coercivity (Hc)( A m⁻¹ ) | <0.02 |
| Curie temperature( C ) | 460 |
| Saturation flux density( T ) | 0.77 |
Mechanical Properties
| Element | Value |
|---|---|
| Elongation at break( % ) | <38 |
| Tensile strength( MPa ) | 930 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 62 |
| Temperature coefficient( K⁻¹ ) | - |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1445 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 34.6@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 12.9@20-100°C |
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