1J50 (FeNi50) soft magnetic alloy foil is a high-performance nickel-iron precision thin material containing approximately 50% nickel. It is characterized by extremely high magnetic permeability, low coercivity, and low hysteresis loss, making it ideal for applications requiring efficient and stable magnetic response.

After proper vacuum or hydrogen annealing, 1J50 foil exhibits excellent magnetic stability and significantly improved soft magnetic properties. Its relatively high electrical resistivity helps reduce eddy current losses, allowing reliable performance in high-frequency or alternating magnetic fields.

Due to its ultra-thin form and precise thickness control, 1J50 foil offers excellent flexibility and formability, making it suitable for fine processing such as stamping, cutting, and lamination. It maintains uniform composition and stable dimensions, ensuring consistent performance in precision magnetic components.

This material is widely used in electromagnetic shielding, transformer and inductor cores, sensors, relays, solenoids, and other precision electronic and electromagnetic devices. It is also applied in aerospace, industrial automation, and high-end electronic systems where stable magnetic performance and low energy loss are required.

1. Chemical Composition:

2. Technical Specifications:

3. Production Attributes

4. Application

• Electromagnetic shielding for electronic and electrical equipment
• Transformer cores and laminated core structures
• High-frequency inductors and magnetic components
• Relays, solenoids, and electromagnetic switch systems
• Precision sensors and magnetic detection devices
• Microelectronic and precision electronic components
• Magnetic circuit components such as pole pieces and flux guides
• Industrial automation and control systems
• Aerospace and high-reliability electronic systems
• Scientific instruments requiring stable magnetic performance

5.Key feature

• Ultra-high magnetic permeability for efficient magnetic response
• Low coercivity for easy magnetization and demagnetization
• Low hysteresis loss for improved energy efficiency
• High saturation magnetic induction
• Excellent magnetic stability after vacuum or hydrogen annealing
• Very thin thickness with precise dimensional control
• High electrical resistivity to reduce eddy current losses
• Excellent flexibility and formability for precision processing
• Uniform composition and stable microstructure
• Suitable for high-frequency and precision electromagnetic applications