Fe-Ni soft magnetic alloys are widely used across electronics, electrical engineering, automotive systems, instrumentation, and precision magnetic devices. Known for their high permeability, low coercivity, and stable performance, these alloys are essential materials in magnetic circuits and high-sensitivity applications.
This overview introduces the major categories of iron–nickel soft magnetic alloys, their grades, standards, and typical use cases—helping engineers, designers, and buyers quickly identify the right material for their projects.
Fe-Ni Soft Magnetic Alloys
Common Grades:
1J46, 1J50, 1J54, 1J76, 1J77, 1J79, 1J80, 1J85, 1J86, 1J34, 1J51, 1J52, 1J65, 1J66, 1J67, 1J83, 1J403
Standard: GBn198-88
Applications:
Ideal for weak and medium magnetic field environments, including:
- Small transformers & pulse transformers
- Relays and mutual inductors
- Magnetic amplifiers
- Electromagnetic clutches
- Choke coils
- Magnetic shielding components
Keywords:
FeNi alloys, soft magnetic alloys, Permalloy materials, magnetic shielding alloy, NiFe core materials
Magnetic Temperature Compensation Alloys
Common Grades:
1J30, 1J31, 1J32, 1J33, 1J38
Standard: GB/T15005-94
Applications:
Designed for magnetic shunts and compensation structures in electromagnetic and permanent-magnet circuits, such as:
- Magnetic shunt elements in motors
- Precision instrument magnetic stability components
Keywords:
magnetic temperature compensation alloy, precision magnetic materials, temperature-stable NiFe alloys
Corrosion-Resistant Soft Magnetic Alloys
Common Grades:
1J36, 1J116, 1J117
Standard: GB/T14986-94
Applications:
Suitable for magnetic devices working in oxidizing, corrosive, or hydrazine-based environments:
- Aerospace electromagnetic components
- Chemical instrumentation sensors
Keywords:
corrosion-resistant magnetic alloy, soft magnetic materials for aerospace, NiFe alloy manufacturer China
High-Saturation Soft Magnetic Alloy
Common Grade:
1J22
Standard: GB/T15002-94
Applications:
Used in applications requiring high saturation magnetic induction:
- Electromagnet pole pieces
- Telephone receiver diaphragms
- Torque motor rotors
Keywords:
high-saturation magnetic alloy, high Bs magnetic materials, 1J22 alloy supplier
High-Hardness, High-Resistance, High-Permeability Alloys
Common Grades:
1J87, 1J88, 1J89, 1J90, 1J91
Standard: GB/T14987-94
Applications:
Common in high-frequency magnetic components:
- Magnetic head chips
- Micro motors
- High-frequency transformers
- Sensors and magnetic amplifiers
- High-frequency inductive cores
Keywords:
high-frequency magnetic materials, soft magnetic cores, NiFe alloy for sensors, magnetic head alloy
Soft Magnetic Alloys for Magnetic Heads
Common Grades:
1J75, 1J77C, 1J79C, 1J85C, 1J87C, 1J92, 1J93, 1J94, 1J95
Standard: YB/T086-1996
Applications:
Specialized for magnetic recording and reading components:
- Magnetic head housings
- Core pieces and separators
- Precision magnetic recording components
Keywords:
magnetic head alloy, soft magnetic strip, precision magnetic core materials
Why Work With Us — Hangzhou Yiji Technology Co., Ltd.
We provide reliable Fe-Ni soft magnetic materials, custom magnetic components, and fast engineering support. Our team ensures stable quality, quick response, and solutions tailored to your project needs. Contact us anytime for professional global supply and technical service.
