4J06 Wire for Magnetic Sensors and Precision Magnetic Circuits

Brand Name:DLX Place of Origin:China Jiangsu Delivery Time:7-15 Days
Certification:CE,ROHS Supply Ability:500 tons per month
Payment Terms:L/C,T/T,Western Union,MoneyGram

Classification：

Soft Magnetic Alloy Wire

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Product Introduction

4J06 is a nickel-iron Soft Magnetic Alloy designed for applications that require precise magnetic performance and low energy loss. This alloy typically contains about 6% nickel and 94% iron, which gives it a unique combination of high magnetic permeability, low coercive force, and strong mechanical stability. Because of these characteristics, it is widely used in magnetic sensors, precision magnetic circuits, transformers, and other components that demand consistent magnetic response and minimal hysteresis loss.

At DLX Alloy, we produce 4J06 wire using advanced vacuum melting and refining technologies to ensure a stable chemical composition, low impurities, and reliable soft magnetic performance. Our production process includes precision drawing and controlled annealing to achieve excellent dimensional accuracy and consistent magnetic properties, even under fluctuating operating conditions.

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High Magnetic Sensitivity – Excellent permeability ensures accurate magnetic signal transmission.
Low Coercive Force – Reduces energy loss during magnetization cycles, ideal for sensitive devices.
Thermal Stability – Maintains steady performance at moderate operating temperatures.
Fine Wire Workability – Smooth surface finish and flexible drawing range suitable for sensor cores and magnetic circuits.
Consistent Quality – DLX ensures tight dimensional control and uniform performance across every batch.

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	-
1J85	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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Comparative Technical Data

Property	4J06 Alloy	4J32 Alloy	1J79 Alloy
Nickel Content (%)	6	32	79
Density (g/cm³)	7.9	8.1	8.7
Resistivity (μΩ·m)	0.47	0.78	0.45
Saturation Magnetic Induction (T)	1.55	1.45	0.80
Coercive Force (A/m)	≤40	≤50	≤25
Maximum Permeability (μmax)	≥20000	≥15000	≥70000
Curie Temperature (°C)	~700	~240	~450
Typical Application	Sensors, Magnetic Circuits	Precision Parts	Magnetic Shielding

This table highlights how 4J06 offers a balanced solution between cost efficiency and reliable soft magnetic behavior. Compared to higher nickel-content alloys, it maintains excellent magnetic performance while being more mechanically robust and economical—making it ideal for large-scale production in electronic and sensor industries.

Applications

1. Magnetic Sensors
4J06 wire is widely used in low-frequency and precision magnetic sensors. Its high permeability and low coercive force allow it to detect weak magnetic fields accurately, ensuring reliable signal conversion in control and measurement systems.

2. Precision Magnetic Circuits
For precision magnetic circuits, 4J06 wire provides low hysteresis and fast magnetic response. It ensures stable performance in devices where accurate magnetic control and minimal loss are required.

3. Relays and Actuators
Because of its quick magnetization and demagnetization characteristics, 4J06 wire is commonly used in electromagnetic relays and actuators, contributing to fast response and high reliability.

4. Transformers and Choke Coils
4J06’s stable magnetic performance reduces energy loss in small transformers and choke coils, improving overall efficiency.

5. Aerospace and Defense Instruments
Due to its thermal stability and consistent magnetic response, 4J06 is also applied in sensitive navigation and signal instruments used in aerospace applications.

As industries push toward precision control, energy efficiency, and miniaturization, materials like 4J06 are gaining prominence. The rapid development of smart sensors, automotive electronics, and renewable energy systems has increased demand for soft magnetic materials that offer both reliability and cost-effectiveness.

In modern manufacturing, 4J06 stands out as a material capable of maintaining consistent performance across automation systems, intelligent instruments, and power electronics. The trend toward lightweight and high-performance materials is expected to further strengthen the use of 4J06 in next-generation magnetic and sensing technologies.

DLX Alloy Company Advantages

At DLX Alloy, we focus on producing magnetic alloys that meet the highest industrial standards for quality, precision, and performance. Our 4J06 wire benefits from decades of expertise in alloy metallurgy and precision processing.

1. Advanced Manufacturing Process
DLX uses vacuum induction melting and precision hot rolling to ensure uniform microstructure and stable magnetic response. Every production stage, from alloy melting to fine wire drawing, is strictly monitored to guarantee consistent quality.

2. Customized Solutions
We provide flexible customization in wire diameter, annealing treatment, and coil packaging to meet different customer application requirements for magnetic circuits and sensors.

3. Quality Control and Testing
DLX conducts full magnetic testing, including permeability, coercive force, and saturation flux density measurement. This ensures our 4J06 wire performs reliably under various industrial conditions.

4. Global Supply Network
Our 4J06 alloy wire is shipped to clients across Asia, Europe, and North America, backed by reliable logistics and responsive technical support.

5. Strong Technical Support
Our engineering team provides guidance on alloy selection, heat treatment, and design optimization to help customers maximize performance in their magnetic systems.

Market Analysis

The market for soft magnetic materials is growing rapidly, driven by trends in electronic miniaturization, smart sensor development, and green energy systems. The versatility and balanced performance of 4J06 alloy make it a preferred choice for manufacturers of relays, precision transformers, and magnetic sensors.

Compared to high-nickel alloys, 4J06 provides:

Better cost-performance ratio, reducing total material costs without compromising key properties.
Enhanced machinability, improving manufacturing efficiency for complex shapes or fine wire applications.
High reliability, ensuring consistent operation across varying temperatures and magnetic loads.

As the demand for high-accuracy magnetic circuits and low-loss materials continues to rise, 4J06 will remain a key player in supporting energy-efficient and smart device manufacturing.

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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1. What is 4J06 alloy made of?
It is composed mainly of 6% nickel and 94% iron, offering strong soft magnetic performance.

2. What are the key benefits of 4J06 wire?
High permeability, low coercive force, stable magnetic behavior, and cost efficiency.

3. What industries use 4J06 wire most?
Magnetic sensors, transformers, relays, and precision magnetic circuits in electronics and aerospace.

4. How does DLX ensure stable magnetic quality?
Through vacuum melting, precise heat treatment, and full property testing on each batch.

5. Can DLX customize wire specifications?
Yes. DLX can produce wires of different diameters and mechanical properties per customer design.

6. What temperature range can 4J06 operate in?
It performs well under continuous use up to about 500–700°C depending on annealing conditions.

7. What makes 4J06 suitable for magnetic sensors?
Its high magnetic sensitivity and low hysteresis ensure accurate field detection.

8. How does 4J06 compare to high-nickel alloys in performance?
It’s more cost-effective and mechanically stronger while maintaining sufficient permeability for most magnetic applications.

Conclusion

The 4J06 nickel-iron soft magnetic alloy wire delivers an excellent balance of magnetic sensitivity, mechanical strength, and economic efficiency. Its stability and low coercive force make it ideal for magnetic sensors, precision magnetic circuits, and various electromagnetic applications.

DLX Alloy ensures superior quality and reliability through advanced production control and full magnetic testing. With our expertise and customized services, customers can expect consistent performance and long-term stability in every application.

As the global demand for high-precision magnetic materials grows, DLX continues to lead with innovative manufacturing technology and reliable alloy solutions that empower the next generation of intelligent and energy-efficient systems.