Precision 1J79 Permalloy Coil, please note that the above table provides a range of standard thicknesses, widths, and lengths for Precision Alloy.
- Dimensions:
- Thickness: 0.5mm – 50mm
- Width: >600mm
- Certification: ISO, SGS, BV and so on.
- *Customized size needs to be confirmed with us
- Grades: 1J22 soft magnetic alloy, 1J50 soft magnetic alloy, 1J79 Permalloy, 1J85 Permalloy, 4J32(Super-Invar), 4J36, 4J29 Kovar alloy, 4J42Kovar alloy, Cobalt-based elastic alloy 3J21.
Precision 1J79 Coil Size And Specifications
Precision 1J79 Soft Magnetic Coil is a high-performance alloy specifically designed for applications requiring high magnetic permeability and low coercivity. This precision alloy, belonging to the iron-nickel series, offers exceptional magnetic and mechanical properties, making it ideal for a wide range of electronic, communication, aerospace, and other high-tech industries.
Specification | Value |
---|---|
Alloy Grade | 1J79 |
Density (g/cm³) | 8.6 |
Curie Point (°C) | 450 |
Initial Permeability (μ0, mH/m) | ≥40 |
Maximum Permeability (μm, mH/m) | ≥310 |
Coercivity (Hc, A/m) | ≤2.0 |
Saturation Magnetic Induction (Bs, T) | 0.73-0.80 |
Huaxiao Metal Supplier provides all sizes of Precision alloy coil for sale. Customized specifications are available upon request. Additionally, the exact chemical composition and mechanical properties may vary slightly within the ranges listed, depending on the specific alloy formulation and production process. Custom sizes are also available upon request. Welcome to inquire, and learn about more details about the alloy coil.
Chemical Composition of Precision 1J79 Coil
The chemical composition of Precision 1J79 Soft Magnetic Coil is precisely controlled to ensure consistent magnetic and mechanical properties. The primary elements include:
Element | Content Range |
---|---|
Nickel (Ni) | 78.5%-80.0% |
Iron (Fe) | Balance (approximately 20%) |
Molybdenum (Mo) | 0.60-1.10% |
Other Elements (Cu, Mn, Si, etc.) | ≤ Traces specified |
Nickel provides excellent magnetic properties and corrosion resistance, while iron serves as the main matrix element, contributing to good electrical conductivity and stable permeability.



Physical Properties of Precision 1J79 Coil
Property | Value |
---|---|
Resistivity (μΩ·cm) | 55 (at 20°C) |
Thermal Conductivity (W/m·°C) | 13.4 |
Linear Expansion Coefficient (20-100°C, 10⁻⁶/°C) | 10.3-10.8 |
These physical properties ensure efficient electrical conduction, stable magnetic performance over a wide temperature range, and minimal deformation under thermal stress.
Higher density than silicon steel, but better magnetic performance in weak fields.
Lower thermal conductivity than 1J50, requiring careful thermal management in high-frequency applications.
Mechanical Properties of Precision 1J79 Coil
Property | Value |
---|---|
Tensile Strength (MPa) | 400-500 |
Elongation (%) | 25-35 |
Hardness (HV) | 100-130 |
Young’s Modulus (GPa) | 150 |
Advantages & Limitations:
Good ductility allows for precision stamping and winding into thin laminations.
Lower mechanical strength than 1J50, requiring careful handling in high-stress applications.
Please note that the above specifications are typical and may vary slightly based on the manufacturer, production batch, and specific application requirements. For precise specifications and availability, it is recommended to consult with a supplier or manufacturer of Precision alloy coils. Huaxiao Metal Manufacturer also provides other shapes of Precision products, such as bar, sheet&plate, strip, tube&pipe, wire&mesh. The price is affordable and suitable.
What are the 1J79 Permalloy Benefits?

Precision 1J79 Soft Magnetic Coil is a versatile alloy with exceptional magnetic and mechanical properties, making it ideal for a wide range of applications across multiple industries. By understanding its specifications, chemical composition, physical and mechanical properties, and procurement tips, users can maximize its benefits and ensure cost-effectiveness. These benefits make them a suitable choice for a wide range of demanding applications across different industries. Welcome to Huaxiao Metal Manufacturer to request the price, trust you can be satisfied in the alloy products and buy our products in quickly.
Precision 1J79 Coil Applications and Uses
Huaxiao Metal Supplier provides all kinds of precision alloy coil in the world. Welcome to inquiry and ask for the price.
Industry | Use Case | Why 1J79? |
---|---|---|
Telecommunications | RF transformers, inductors | Ultra-low signal distortion |
Medical | MRI shielding, sensors | Near-zero magnetostriction |
Aerospace | Fluxgate sensors, avionics | High stability in weak fields |
Audio Electronics | High-end audio transformers | Minimal hysteresis loss |



Precision 1J79 Permalloy Coil Advantages
High Magnetic Permeability: Ensures efficient energy transfer in magnetic circuits.
Low Core Loss: Reduces energy dissipation, enhancing efficiency.
Thermal Stability: Maintains performance under high-temperature conditions.
Versatility: Suitable for a wide range of applications, from transformers to sensors.
Cost-Effectiveness: Long service life and reduced maintenance costs.
Ultra-High Permeability – Ideal for weak magnetic field amplification (e.g., sensors).
Near-Zero Magnetostriction – Eliminates noise in audio transformers & medical devices.
Low Hysteresis Losses – Enhances energy efficiency in high-frequency applications.
Excellent Corrosion Resistance – Suitable for harsh environments.
Superior High-Frequency Performance – Outperforms silicon steel in RF & telecom applications.
Tips for Procurement and Cost-Effectiveness
Alloy Procurement Considerations
✔ Supplier Certification – Ensure compliance with GB/T 15018 (China) or ASTM A753 (International).
✔ Magnetic Property Testing – Verify B-H curve, permeability, and core loss before bulk purchase.
✔ Form Availability – Check for cold-rolled strips, annealed coils, or custom-cut laminations.
Cost-Effectiveness Analysis
Factor | 1J79 | 1J50 | Silicon Steel |
---|---|---|---|
Material Cost ($/kg) | $35-45 | $25-30 | $5-10 |
Machinability | Excellent | Excellent | Poor (Brittle) |
Energy Efficiency (High Freq.) | Best | Good | Moderate |
Conclusion:
1J79 is more expensive than 1J50 and silicon steel, but justified in high-sensitivity applications.
Best for low-power, high-precision devices where permeability outweighs cost concerns.



Manufacturing and Cost Considerations
Critical Processes: Cold rolling, annealing (hydrogen atmosphere for optimal properties).
Machining Methods: Precision stamping, laser cutting, EDM (avoid mechanical stress).
Cost Drivers: Nickel price volatility (~$20-25/kg), processing complexity.
Pricing Insights
Form | Price Range ($/kg) |
---|---|
Cold-Rolled Strip (0.1-0.5mm) | $35-45 |
Annealed Coil (Custom Widths) | $40-55 |
Precision Laminations (Laser-Cut) | $60-100 |
Procurement Strategy:
Bulk orders (>300 kg) reduce costs by ~10-15%.
Long-term contracts help mitigate nickel price fluctuations.
1J79 Permalloy Factory
Huaxiao Metal Supplier provides professional services and reasonable prices, offering customers the best quality products. The Precision Alloy Coil Alloy Factory is a specialized manufacturing facility dedicated to the production of high-quality precision alloy coils. This factory combines advanced technology, rigorous quality control, and experienced personnel to ensure the production of precision alloy coils that meet the highest standards.The factory is equipped with state-of-the-art production equipment and machinery, capable of producing precision alloy coils with precise dimensions and consistent quality. Welcome to require, and ask to the price.
Precision 1J79 Soft Magnetic Coil is widely used in various industries due to its exceptional magnetic properties:
- Electronics and Communications: Ideal for transformers, relays, and sensors.
- Aerospace and Defense: Critical in high-precision navigation and control systems.
- Medical and Biotechnology: Suitable for magnetic resonance imaging (MRI) components.
- Energy and Power: Utilized in current transformers and power electronics.
In Conclusion
The 1J79 soft magnetic alloy is the premium choice for applications requiring ultra-high permeability, minimal energy loss, and precision performance. While more expensive than 1J50 and silicon steel, its unmatched magnetic properties justify the cost in high-end applications.
Final Recommendation:
For high-permeability needs (sensors, shielding, audio) → 1J79 is optimal.
For moderate permeability & cost balance → 1J50 is preferable.
For high-power, low-frequency applications → Silicon steel is economical.
Precision 1J79 Soft Magnetic Coil is a versatile alloy with exceptional magnetic and mechanical properties, making it ideal for a wide range of applications across multiple industries. By understanding its specifications, chemical composition, physical and mechanical properties, and procurement tips, users can maximize its benefits and ensure cost-effectiveness. With its proven performance and reliability, Precision 1J79 Soft Magnetic Coil stands out as a preferred choice for high-tech applications requiring precision and efficiency.