Cobalt Vanadium Iron Permanent Magnet Alloy 2J31-2J33 with 0.7 μΩ·m Resistivity and 8.1 g/cm³ Density
Deformable permanent magnetic materials are plastic alloys with excellent forging, rolling, drawing, and machining capabilities. These materials can be manufactured into thin sections or complex shapes with varying magnetic and mechanical properties, making them essential in permanent magnet applications.
| Grade | C | Mn | Si | P | S | Ni |
|---|---|---|---|---|---|---|
| 2J31 | ≤0.12 | ≤0.70 | ≤0.70 | ≤0.025 | ≤0.020 | ≤0.70 |
| 2J32 | ≤0.12 | ≤0.70 | ≤0.70 | ≤0.025 | ≤0.020 | ≤0.70 |
| 2J33 | ≤0.12 | ≤0.70 | ≤0.70 | ≤0.025 | ≤0.020 | ≤0.70 |
| Grade | Co | V | Fe |
|---|---|---|---|
| 2J31 | 51-53 | 10.8-11.7 | Bal |
| 2J32 | 51-53 | 11.7-12.7 | Bal |
| 2J33 | 51-53 | 12.8-13.8 | Bal |
| Grade | Tempering Temperature | Hold Time | Cooling Method |
|---|---|---|---|
| 2J31 | 580-640℃ | 20-60 min | Air Cooling |
| 2J32 | 580-640℃ | 20-60 min | Air Cooling |
| 2J33 | 580-640℃ | 20-60 min | Air Cooling |
| Grade | Melting Temp (°C) | Curie Point (°C) | Density (g/cm³) | Linear Temp (10⁻⁶/°C) | Resistivity (μΩ·m) |
|---|---|---|---|---|---|
| 2J31 | 1530-1600 | 860 | 8.1 | 11-13 | 0.7 |
| 2J32 | 1530-1600 | 860 | 8.1 | 11-13 | 0.7 |
| 2J33 | 1530-1600 | 860 | 8.1 | 11-13 | 0.7 |
Cobalt vanadium iron and iron chromium cobalt alloys offer excellent plasticity and ductility, enabling production of wires and strips for small cross-section permanent magnet components. These materials are widely used in both military and civilian industries.
- Magnetic compass pointing steel and correction magnetic steel
- Aviation and aerospace industry matrix elements for electronic computers
- Weapon theodolite tubular needles
- Aviation and automotive instrument magnetic steel
- Magnetic flip displays, magnetic stirrers, magnetic balances
- Electric meters and permanent magnet motor stator magnetic steel
Hysteresis motors feature simple structure, self-starting capability, constant torque, and silent operation. They are extensively used in navigation gyroscopes, fax communication systems, and various recording instruments.
Cobalt vanadium iron hysteresis alloys maintain excellent plasticity before tempering. After 90% cold rolling or drawing, they develop superior hysteresis performance with strong magnetic anisotropy, where longitudinal magnetic properties exceed horizontal characteristics.
These alloys can be rolled into thin 0.05 mm strips for cylindrical rotor wrapping, utilizing the material's excellent magnetic properties for optimal performance.
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