At DLX Alloy, we specialize in manufacturing and supplying premium-grade 4J47 nickel-iron alloy plates designed for high precision electronic applications. Known for their high magnetic permeability, excellent stability, and low coercivity, our 4J47 plates are widely used in magnetic shielding, precision sensors, relays, and other electromagnetic control systems. This alloy offers a balance of magnetic performance and mechanical strength, making it one of the most versatile soft magnetic materials in modern electronic manufacturing.
The 4J47 alloy (also known as Ni47Fe53) is a nickel-iron Soft Magnetic Alloy with approximately 47% nickel and 53% iron. Its microstructure is optimized through precise heat treatment to achieve high initial permeability and stable magnetic properties under varying temperature and frequency conditions.
DLX Alloy uses vacuum melting and precision rolling to ensure uniform composition and consistent magnetic performance across the entire plate surface. The alloy’s low hysteresis loss and good machinability make it an excellent choice for magnetic shielding structures, transformers, and precision sensors in high-reliability electronic equipment.
Alloy Composition Table
Alloy Grades | C | S | P | Mn | Si | Ni | Cr | Co | Mo | Cu | Al | Nb | Fe | Other Elements |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1J06 | 0.04 | 0.015 | 0.015 | ≤0.10 | ≤0.15 | - | - | - | - | - | 5.5-6.5 | - | Rest | - |
1J12 | 0.03 | 0.015 | 0.015 | ≤0.10 | ≤0.15 | - | - | - | - | - | 11.6-12.4 | - | Rest | - |
1J17 | 0.03 | 0.02 | 0.02 | ≤0.60 | ≤0.20 | - | 15.5-16.5 | - | - | - | - | - | Rest | - |
1J18 | 0.03 | 0.02 | 0.02 | 0.3-0.7 | ≤0.15 | 0.5-0.7 | 17-18.5 | - | - | - | - | - | Rest | Ti: 0.3-0.7 |
1J22 | 0.04 | 0.02 | 0.02 | ≤0.3 | ≤0.3 | ≤0.5 | - | 49-51 | - | ≤0.2 | - | - | Rest | V: 0.8-1.8 |
1J30 | 0.04 | 0.02 | 0.02 | ≤0.40 | ≤0.30 | 29.5-30.5 | - | - | - | - | - | - | Rest | - |
1J36 | 0.03 | 0.02 | 0.02 | ≤0.60 | ≤0.20 | 35.0-37.0 | - | - | - | - | - | - | Rest | - |
1J38 | 0.03 | 0.05 | 0.02 | 0.3-0.6 | 0.15-0.3 | 37.5-38.5 | 12.5-13.5 | - | - | - | - | - | Rest | - |
1J46 | 0.03 | 0.02 | 0.02 | 0.6-1.1 | 0.15-0.3 | 45.0-46.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J50 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 49-50.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J51 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 49-50.5 | - | - | - | ≤0.2 | - | - | Rest | - |
1J54 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 1.1-1.4 | 49.5-51 | 3.8-4.2 | - | - | ≤0.2 | - | - | Rest | - |
1J76 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 75.0-76.5 | 1.8-2.2 | - | - | 4.8-5.2 | - | - | Rest | - |
1J77 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | 0.15-0.3 | 75.5-78 | - | - | 3.9-4.5 | 4.8-6.0 | - | - | Rest | - |
1J79 | 0.03 | 0.02 | 0.02 | 0.6-1.10 | 0.3-0.5 | 78.5-80.0 | - | - | 3.8-4.1 | ≤0.2 | - | - | Rest | - |
1J80 | 0.03 | 0.02 | 0.02 | 0.6-1.10 | 1.1-1.5 | 79.0-81.5 | 2.6-3.0 | - | - | ≤0.2 | - | - | Rest | - |
0.03 | 0.02 | 0.02 | 0.3-0.60 | 0.15-0.3 | 79.0-81.0 | - | - | 4.8-5.2 | ≤0.2 | - | - | Rest | - | |
1J87 | 0.03 | 0.02 | 0.02 | 0.3-0.6 | ≤0.3 | 78.5-80.5 | - | - | 1.6-2.2 | - | - | 6.5-7.5 | Rest | - |
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High Magnetic Permeability: Provides excellent magnetic flux conduction and minimizes magnetic field distortion.
Stable Magnetic Performance: Maintains consistent permeability under thermal and frequency changes.
Low Coercive Force: Enables easy magnetization and demagnetization cycles with minimal energy loss.
Good Corrosion Resistance: Performs reliably in humid or slightly oxidizing environments.
High Dimensional Precision: Ideal for precision electronic components that require strict tolerance control.
Excellent Thermal Stability: Magnetic characteristics remain steady under fluctuating operating temperatures.
Applications
4J47 nickel-iron plates are integral to precision electronics where magnetic field control is crucial. Common applications include:
Magnetic Shielding Systems: Protects sensitive circuits and instruments from external magnetic interference.
Transformers and Inductors: Ensures efficient magnetic flux transfer and reduces core losses.
Relays and Solenoids: Enables fast, stable actuation performance.
Magnetic Sensors: Used in automotive, aerospace, and measurement devices for stable signal detection.
Precision Instrument Components: Applied in gyroscopes, oscillators, and frequency control units.
As modern industries move toward miniaturization and precision electronics, demand for high-performance soft magnetic materials like 4J47 continues to rise. Markets such as aerospace, communication, medical devices, and semiconductor equipment increasingly require materials that provide reliable magnetic shielding and low signal interference.
Compared with lower nickel alloys, 4J47 offers higher permeability and better thermal stability, making it a preferred choice for magnetic shielding and precision instrumentation. The ongoing development of smart sensors, EV components, and high-frequency communication systems further drives its adoption globally.
DLX Alloy has observed a consistent increase in international orders for 4J47 plates due to the growth of electronic automation and intelligent control systems. As the demand for precision, low-noise electronics expands, the market for high permeability materials like 4J47 is expected to grow steadily.
| Property | 4J47 | 4J50 | 4J36 | 4J06 |
|---|---|---|---|---|
| Nickel Content (%) | 47 | 50 | 36 | 6 |
| Magnetic Permeability (μmax) | 90,000 – 120,000 | 100,000+ | 10,000 | 3,000 |
| Coercive Force (A/m) | ≤ 4 | ≤ 3 | ≤ 8 | ≤ 10 |
| Saturation Induction (T) | 1.55 | 1.50 | 1.50 | 1.65 |
| Curie Temperature (°C) | ~500 | ~450 | ~300 | ~650 |
| Main Application | Magnetic Shielding, Precision Electronics | Transformers, Sensors | Thermal Expansion Control | Relays, Solenoids |
4J47 stands out for its balanced magnetic properties and thermal stability, ideal for precision magnetic field applications.
DLX Company Advantages
DLX Alloy takes pride in being one of the few manufacturers capable of producing high-purity 4J47 alloy plates with customized specifications and tight tolerance control.
Our advantages include:
Vacuum Melting & Controlled Rolling: Ensures homogeneity, low inclusion content, and superior magnetic consistency.
Comprehensive Magnetic Testing: Every batch undergoes initial permeability, coercivity, and hysteresis loss testing to guarantee performance reliability.
Custom Size Availability: Plates can be supplied in various thicknesses and dimensions according to customer drawings.
Precision Annealing: Optimized heat treatment delivers consistent and repeatable magnetic performance.
Global Export Capability: DLX products are widely used in Europe, North America, and Southeast Asia, meeting international quality standards.
Engineering Support: Our technical team provides consultation on design optimization and alloy selection for specific applications.
At DLX Alloy, we focus not only on producing high-quality materials but also on offering technical partnership to support the entire lifecycle of your electronic or magnetic system development.
About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.
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FAQs:
1. What is the main benefit of using 4J47 over standard iron alloys?
4J47 offers much higher magnetic permeability and lower coercive force, resulting in more efficient magnetic shielding and smoother magnetic response.
2. Can 4J47 plates be customized in thickness and size?
Yes. DLX Alloy provides full customization from thin foils to heavy plates based on customer drawings and tolerance requirements.
3. Is 4J47 suitable for high-frequency applications?
Yes. Its stable permeability and low loss characteristics make it ideal for medium to high-frequency components.
4. How does 4J47 perform under temperature changes?
It maintains stable magnetic properties up to approximately 500°C, making it reliable in varying temperature environments.
5. What industries commonly use 4J47 plates?
They are widely used in aerospace electronics, communication equipment, medical devices, and precision instrumentation.
6. How does DLX ensure material consistency?
We use vacuum induction melting, refined annealing, and full magnetic testing for every production batch.
7. Can DLX provide small-batch orders for prototyping?
Absolutely. DLX supports both small-volume R&D needs and large-scale industrial production.
8. What surface treatments are available?
We offer polished, matte, and oxidized finishes depending on the intended application and assembly requirements.
Conclusion
The 4J47 nickel-iron alloy plate is a cornerstone material for precision magnetic shielding and electronic control systems. Its combination of high permeability, low loss, and excellent stability makes it the material of choice for demanding magnetic applications.
With DLX Alloy’s advanced production capability, strict quality control, and engineering expertise, our 4J47 plates help customers achieve higher performance, longer service life, and enhanced system stability. As industries evolve toward smarter, more precise electronic technologies, DLX Alloy continues to deliver materials that meet the challenges of modern innovation.
