Grain Oriented Silicon Electrical Steel Mother Coil for Transformers
Sep 28, 2025
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Grain Oriented Silicon Electrical Steel Mother Coil Product Description
Cold-Rolled Grain-Oriented Silicon Steel Mother Coil is the core base material for manufacturing transformer iron cores. Through specialized rolling and heat treatment processes, the material develops a Goss texture alignment, achieving superior magnetic properties.
silicon steel includes oriented magnetic steel (GO) and non-oriented magnetic steel (NO).
GO steel has excellent properties such as high magnetism and low loss. It is mainly used for transformers, transformers, contributing greatly to improving the efficiency of machinery. NO steel is a silicon iron alloy with very low carbon content, and its grains are unevenly oriented in the steel plate after deformation and annealing. With low loss, NO steel is widely used in the field of making motor cores, generators…
Grain Oriented Silicon Electrical Steel Key Characteristics
1.Grain-Oriented Structure:
Unlike non-oriented silicon steel, oriented silicon electrical steel has a specific crystal orientation where the magnetic easy direction (typically the <001> direction) is aligned with the rolling direction of the steel.
2.High Magnetic Permeability:
This alignment results in superior magnetic properties, making it easier to magnetize the material in a specific direction.
3.Low Core Loss:
The optimized grain structure significantly reduces energy losses, particularly eddy current and hysteresis losses, leading to higher efficiency in electrical devices.
4.Silicon Content:
Like other electrical steels, it contains a controlled amount of silicon (typically up to 3.2% by mass) to increase electrical resistivity and reduce losses.
Grain Oriented Silicon Electrical Steel Applications
- 500kV+ Ultra-High-Voltage Transformers
- Renewable Energy Step-Up Transformers
- High-Speed Rail Traction Transformers
- Data Center Dry-Type Transformers
Silicon Electrical Steel specifications
| Type | Grade | Width | Max Core Loss@P1.7T/50Hz | Lamination Factor(%) | Min Induction@B800 |
| Common Type | 23Q110 | 900-1200mm | 1.10w/kg | 97.2 | 1.82T |
| 23Q120 | 1.20w/kg | 97.2 | 1.82T | ||
| 27Q120 | 1.20w/kg | 97.5 | 1.82T | ||
| 30G120 | 1.20w/kg | 98 | 1.82T | ||
| High Induction Type |
B20P085 | 900-1200mm | 0.85w/kg | 97 | 1.86T |
| B23P085 | 0.85w/kg | 97.2 | 1.88T | ||
| B23P090 | 0.90w/kg | 97.2 | 1.88T | ||
| B23P095 | 0.95w/kg | 97.2 | 1.88T | ||
| B23P100 | 1.00w/kg | 97.2 | 1.88T | ||
| B27P095 | 0.95w/kg | 97.5 | 1.89T | ||
| B27P100 | 1.00w/kg | 97.5 | 1.89T | ||
| B30P120 | 1.20w/kg | 98 | 1.89T | ||
| Domain Refined High Induction Type(Laser) |
B20R065 | 900-1200mm | 0.65w/kg | 97 | 1.86T |
| B23RK085 | 0.85w/kg | 97.2 | 1.88T | ||
| B27RK085 | 0.85w/kg | 97.5 | 1.89T |
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