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Model No: 1J85 NiFe Alloy
1J85 NiFe Soft Magnetic Alloy
The 1J85 alloy is a nickel-iron (NiFe) soft magnetic alloy known for its high permeability, low coercivity, and excellent magnetic properties in weak magnetic fields. It belongs to a class of precision alloys widely used in electronics, telecommunications, and instrumentation.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
The 1J85 alloy is a nickel-iron (NiFe) soft magnetic alloy known for its high permeability, low coercivity, and excellent magnetic properties in weak magnetic fields. It belongs to a class of precision alloys widely used in electronics, telecommunications, and instrumentation.
Key Properties of 1J85 NiFe Alloy
- High Permeability – Excellent magnetic response in low-field applications.
- Low Coercivity – Minimal energy loss during magnetization reversal.
- Near-Zero Magnetostriction – Reduces magnetic noise and distortion.
- Good Temperature Stability – Maintains performance over a range of temperatures.
- Controlled Saturation Induction (~0.8 T) – Suitable for sensitive magnetic components.
Chemical Composition
| Material Grade | Executive standard | Chemical Composition（%） | |||||||||||
| C | S | P | Mn | Si | Ni | Cr | Co | Mo | Cu | Al | Fe | ||
| MAX | |||||||||||||
| 1J85 | 0.03 | 0.02 | 0.02 | 0.-3-0.6 | 0.15-0.30 | 79-81 | – | – | 4.8-5.2 | ≤0.2 | – | Bla. | |
1J85 Physical Performance
| Resistivity | Harness | Thermal expansion coefficient | Saturated magnetic induction | Initial Permeability | Maximum Permeability | Coercive force |
|---|---|---|---|---|---|---|
| 0.56μΩ•m | 130-240HB | 0.5×10-6/℃ | >0.78T | >30mH/m | >115mH/m | <2.4A/m |
High starting magnetic conductivity soft magnetic alloy AC magnetic property
Material Type | Process Type | Strip Thickness | Elastic magnetic conductivity at different frequencies when the magnetic field strength peak is 0.1A | |||
| 60Hz | 400Hz | 1KHz | 10kHz | |||
| Not Less Than | ||||||
1J85 | Cold Roll | 0.02 | – | – | 16000(20) | 12000(12.5) |
| 0.05 | – | – | 25040(31.3) | 9040(11.3) | ||
| 0.1 | – | 25040(31.3) | 20000(25) | – | ||
| 0.2 | – | 19040(23.8) | 8000(10) | – | ||
| 0.35 | 38 | 10000(12.5) | – | – | ||
Wire Size and tolerance
| Grade | Executive standard | Delivery status | Wire rod size/accuracy | Thick wire size range/accuracy | Filament size range/accuracy |
| Soft MagneticAlloy Grade | GBn198-1988 | Hard State（Y） ，Semi-hard State（Y2）Soft state (M) | Ф8.0±0.6mm | Ф5.85-9.0±0.5mm | Ф1.00±0.0.02mm Ф1.00-Ф1.5±0.03m |
Applications
- Transformers & Inductors (for high-frequency applications)
- Magnetic Shielding
- Sensors & Transducers
- Audio & Telecommunication Equipment
- Aerospace & Defense Electronics
Heat Treatment
Typically annealed in a hydrogen atmosphere to enhance magnetic properties by reducing impurities and stresses.
Comparison with Other NiFe Alloys
Similar to Permalloy (e.g., 1J79, ~79% Ni) but with slightly different permeability and saturation characteristics.
Compared to Supermalloy (1J77, ~77% Ni + Mo/Cr), 1J85 offers better performance in certain weak-field applications.
Lork Group supplies premium 1J85 NiFe soft magnetic alloy, a high-permeability, low-coercivity material ideal for precision electronics, sensors, transformers, and magnetic shielding. With exceptional temperature stability and near-zero magnetostriction, 1J85 alloy ensures reliable performance in demanding applications.
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