Amorphous and Nickel Iron Cores
Oct 14, 2025
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Amorphous and Nickel Iron Cores Description
As GNEE International continuously strives to be the leader for offering powerful solutions in the magnetics industry, GNEE has partnered with a leading OEM supplier of amorphous cores, custom nanocrystalline cores, and 80% nickel iron alloy cores. The core configurations include toroid's, gapped toroid's, cut cores, and specialty stampings. With the addition of these products, GNEE will be able to offer the marketplace competitive prices on low frequency magnetics designs in addition to the high frequency magnetics designs currently being supported.
Amorphous and Nickel Iron Cores Feature
- High saturation induction of 1.56 Tesla-Reducing component volume.
- Low coercivity – Increasing component efficiency.
- Low core loss – Reducing temperature rise in devices.
- Variable permeability by different heat treatments – Satisfying various application requirements.
- Excellent thermal stability – Highest service temperature of 130°C.
Amorphous and Nickel Iron Cores Application
- Medium-frequency transformer cores in heating equipment.
- Toroidal gapless cores as SMPS output inductors and differential input inductors.
- Toroidal gapless cores as noise prevention chokes in car audio and navigation systems.
- Toroidal gap cores for PFC used in air conditioning and plasma TV.
- High-frequency rectangular cut cores as output inductors and transformers in SMPS, UPS, etc.
- Toroidal gapless cores as pulse transformers for driving IGBTs, MOSFETs, and GTOs.
- Amorphous stators and rotors in high power density speed-variable electric.
specification
Physical Properties:
| Saturation Induction (Bs) | 1.56T | Hardness Hv | 960kg/mm2 |
| Curie Temperature (Tc) | 410 °C | Density | 7.18g/cm3 |
| Crystallization Temperature (Tx) | 535 °C | Resistivity | 130 µ Ω-cm |
| Saturation Magnetostriction | 27 X 10-6 |
Comparison of characteristics between Fe-based Amorphous ribbon and cold-rolled silicon steel sheet
| Performance | Amorphous | Silicon Steel |
| Saturation Magnetic Inductance (T) | 1.56 | 2.03 |
| Coercivity (A/m) | <4 | <30 |
| Maximum Permeability | >25 X 104 | 4 X 104 |
| Core Loss (W/kg) | 50Hz, 1.3T, P<0.2 | 50Hz, 1.7T, P=1.2 |
| Magnetizing Power (VA/kg) | 50Hz, 1.3T, P<0.5 | 50Hz, 1.7T, P<0.83 |
| Stacking Factor | 0.84 | 0.95 |
| Magnetostriction (X10-6) | 27 | n/a |
| Resistivity (µ Ω-cm) | 130 | 45 |
| Density (g/cm3) | 7.18 | 7.65 |
| Crystallizationi Temperature (°C) | 535 | n/a |
| Curie Temperature (°C) | 415 | 746 |
| Strength (Mpa) | 1500 | 343 |
| Hardness (HV) | 900 | 181 |
| 300 | 300 | 300 |
| Width (mm) | Thickness (µm) | Manufacturing Method |
| 5 ± 0.05 | 25 ± 2 | Slitted Ribbon |
| 8 ± 0.05 | 25 ± 2 | Slitted Ribbon |
| 10 ± 0.05 | 25 ± 2 | Slitted Ribbon |
| 15 ± 0.05 | 25 ± 2 | Slitted Ribbon |
| 20 ± 0.1 | 25 ± 2 | Slitted Ribbon |
| 25 ± 0.1 | 25 ± 2 | Slitted Ribbon |
| 30 ± 0.1 | 25 ± 2 | Slitted Ribbon |
| 40 ± 0.1 | 25 ± 2 | Slitted Ribbon |
| 50 ± 0.1 | 25 ± 2 | Slitted Ribbon |
| 60 ± 1 | 25 ± 2 | Casted Ribbon |
| 100 ± 1 | 25 ± 2 | Casted Ribbon |
| 142 ± 1 | 25 ± 2 | Casted Ribbon |
| 170 ± 1 | 25 ± 2 | Casted Ribbon |
Note: Other specifications can be provided based on customer requirements
GNEE Featured Products
Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
Manufacturing Process
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
6. testing
GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
30+
Types of Products
18k+
Happy Clients
Why Choose GNEE EC?
GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
1,000+
Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview
Meet Our Sales Manager
"The Core of the Iron Core, the Power of Leadership" - See Our Great Decision-Makers Deeply Engaged in the Magnetic Materials Industry.
Edison Zhang
CEO
Kelly Zhang
General Manager
Alex Cao
Sales Manager
Industries Served
Automobile Industry
New Energy
Transformer Applications
Our Mission
Strive To Create world-class Iron core brand
With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets