Silicon Steel And Electrical Steel
Sep 25, 2025
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Electrical Steel Product Description
Silicon Steel is a silicon iron alloy with a silicon content of 3%~ 5%. Divided into oriented silicon steel and non-oriented silicon steel,also known as electrical steel, silicon electrical steel, lamination steel, relay steel, or transformer steel is specialty steel with silicon added to it, which improves its electrical resistivity and magnetic properties, and reduces hysteresis loss.
This steel is ideal for various electrical applications where electromagnetic fields are important, such as transformers, magnetic coils,and electrical motors, it is an important soft magnetic alloy which is indispensable for power, electron and military industry.
Silicon Steel specifications
Type: Oriented Silicon Steel
Technique: Cold Rolled
Thickness: 0.23 - 0.5 mm
Surface Treatment: Coated
Shape: Coil/Plate/Sheet/Strip
Standard: AiSi, ASTM, DIN, GB, JIS, BS
Tolerance: ±1%
Processing Service: Bending, Welding, Cutting
Grade: B27P100
Product Name: Silicon Steel Sheet
Material: Cold Rold Grain-Oriented Electrical Steel
Steel Shape: Steel Coil Crgos
Process: Bending
Application: Power Transformers
Color: Silver Gray
Weight: 1075
MOQ: 2000 KG
Nominal Width: 10mm-1200mm
Product: CRGO Silicon Metal
Material Selection
Grain-oriented Electrical Steel
| Varieties | Common type | High induction type | Domain refinedhigh induction type |
| Large motors | √ | √ | |
| Large transformers | √ | √ | √ |
| Medium and small transformers | √ | √ | √ |
| Distributing transformers | √ | √ | |
| Voltage regulator | √ | √ | √ |
| Reactor and magnetic amplifier | √ | √ | |
| IF transformer | √ | ||
| Mutual inductor | √ | √ | |
| TV transformer | √ | √ | |
| Radio transformer | √ | √ | |
| Radio broadcast transformer | √ |
Electrical Steel Mechanical Property
| Mechanical Property | ||||
| Grade | Yeild Strength(N/mm2) | Ultra-TensionStrength(N/mm2) | Ductility(%) | Hardness(HV1 |
| M35W230 | 430 | 560 | 20.0 | 225 |
| M35W250 | 415 | 550 | 20.5 | 220 |
| M35W270 | 400 | 515 | 20.5 | 215 |
| M35W300 | 360 | 480 | 21.5 | 195 |
| M35W360 | 350 | 480 | 23.5 | 190 |
| M35W440 | 275 | 420 | 27.5 | 165 |
| M35W550 | 265 | 415 | 33.5 | 160 |
| M50W250 | 430 | 560 | 19.0 | 230 |
| M50W270 | 410 | 550 | 21.5 | 225 |
| M50W290 | 395 | 545 | 22.5 | 220 |
| M50W310 | 385 | 510 | 24.5 | 210 |
| M50W350 | 350 | 475 | 26.5 | 190 |
| M50W400 | 320 | 460 | 36.0 | 170 |
| M50W470 | 295 | 425 | 35.0 | 160 |
| M50W600 | 280 | 410 | 37.0 | 140 |
| M50W800 | 285 | 405 | 38.5 | 135 |
| M50W1300(D) | 250 | 360 | 40.0 | 115 |
Electrical silicon steel Insulating Coating
| Insulating Coating | ||
| Coating types | M11 | M21 |
| Component | Chromium containing , semi organic coating | Chromium free, semi organic coating |
| Coating thickness(μm) | 0.7~1.5 | 0.8~5.0 |
| Interlayer resistance(Ω•mm2 /slice) | ≥100 | ≥100 |
| Adhesive property | Class A or class B | Class A or class B |
| Punching property | Excellent | Excellent |
| Antirust property | Excellent | Excellent |
| Heat resisting property | Resistant annealing at 750 C, N2 protection, for 2h | Annealing resistance in general |
Electrical silicon steel Fields of Applications
| Fields of application | Grain-oriented electrical steel | Non-oriented electrical steel | |||||||||
| Series G | Series P | Series R | Series A | Series AH | Series AR | Series AT | |||||
| 230~400 | 440~700 | 800~1300 | 230~470 | 600~1000 | |||||||
| Rotators | Large-sized motors | √ | √ | ||||||||
| Medium-sized motors | √ | √ | √ | ||||||||
| Compressor motors | √ | √ | √ | √ | √ | √ | |||||
| General motors | √ | √ | √ | √ | √ | √ | |||||
| Small-sized precision motors | √ | √ | √ | √ | √ | √ | |||||
| Motors for electric cars | √ | √ | √ | √ | |||||||
| Static device | High-frequency motors | √ | √ | √ | |||||||
| Large-sized transformers | √ | √ | √ | ||||||||
| Small-sized power transformers | √ | √ | √ | √ | √ | √ | √ | √ | √ | ||
| Transformers for instruments | √ | √ | √ | ||||||||
| Reactors and magnetic amplifiers | √ | √ | √ | √ | |||||||
| Power switches | √ | ||||||||||
| Transformers for welding | √ | √ | √ | ||||||||
| Voltage regulators | √ | √ | √ | √ | √ | √ | |||||
| Magnetic sealers | √ | √ | √ | √ | |||||||
| Electromagnetic devices for accelerators | √ | √ | √ | √ | |||||||
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