Cold Rolled Grain Oriented Electrical Steel Plate for Power Transformer
Oct 11, 2025
Leave a message
Cold Rolled Grain Oriented Electrical Silicon Steel Product Description
Cold Rolled Grain Oriented Electrical Silicon Steel (CRGO) is a soft magnetic alloy used primarily for transformer cores to create a strong magnetic core that reduces energy losses. The "grain-oriented" structure aligns the crystals in the rolling direction, enhancing its magnetic properties for high-efficiency applications in power generation and distribution.
Product Name | Electrical Steel, Lamination Steel, Silicon Electrical Steel, Silicon Steel, Relay Steel, Transformer Steel | |||
Category | Grain-Oriented Electrical Steel; Non-oriented electrical steel | |||
Standard | AISI, ASTM, BS, DIN, GB, JIS, EN | |||
Thickness | 0.2- 0.8 mm | |||
Width | 900-1230 mm | |||
Origin | China | |||
Packing | Export standard package (as per requirements) | |||
MOQ | 3 tons per size | |||
Delivery time | 15-40 days after receiving L/C or deposit | |||
Remark | Specific requirement of alloy grade,temper or specification can be discussed at your request | |||
CRGO Electrical Steel Product advantages
1.Stable performance
2.Excellent processing performance: High precision dimension and excellent mechanical properties make it easy to be sheared, punched and stacked by high speed punch machine. It also have good welding performance.
3.Excellent performance of Insulating coating: Uniform color, good insulation, high adhesion, excellent heat resistance and excellent processing performance
CRGO Electrical Steel Specification
Mechanical Property | ||||
Grade | Yeild Strength | Ultra-Tension Strength(N/mm2) | Ductility | Hardness |
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 |
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 | ≥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 |
CRGO Electrical Steel Applications
Electrical steel (silicon steel sheet) is mainly divided into two categories: grain-oriented electrical steel and grain non-oriented electrical steel. The direction of easy magnetization grains of oriented electrical steel is distributed along the rolling direction. The rolling direction has excellent characteristics such as high magnetic induction, low iron loss and low magnetostriction.
At the same time, it can also be processed by magnetic domain refinement technology to obtain lower iron Loss of performance, widely used in the field of transformer industry. The grain direction of non-oriented electrical steel is randomly distributed, and the electromagnetic properties are uniform in all directions. It is widely used in the motor industry.
Field | Purpose | |||
Rotary machine | Large motor | |||
The Immobilizer | High frequency working motor | |||
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