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Home » Products » Steel Coil » Cold Rolled Coil » Cold Rolled Grain-Oriented Electrical Silicon Steel Coil CRGO Steel Sheet Lamination For Transformer Iron Core

Cold Rolled Grain-Oriented Electrical Silicon Steel Coil CRGO Steel Sheet Lamination For Transformer Iron Core

Silicon steel with silicon content of 1.0 ~ 4.5% and carbon content less than 0.08% are called silicon steels. It has the characteristics of high permeability, low coercivity and high resistivity, so the hysteresis loss and eddy current loss are small. Mainly used as magnetic materials in motors, transformers, electrical appliances and electrical instruments. In order to meet the needs of punching and shearing, certain plasticity is required. In order to improve the magnetic inductive energy and reduce the hysteresis loss, the harmful impurity content should be as low as possible, and the plate type should be flat and the surface quality should be good.
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  • CRGO/CRNGO

  • HONGKUN

  • 72251900.00

Silicon Steel General Introduction:

Electical steel(Silicon Steel), usually referring to cold rolled electrical steel, can be divided into
two major categories including grain oriented silicon steel and non-oriented electrical steel

CRGO silicon steel with its easy magnetization direction parallel to the rolling direction,has excellent magnetic properties in this direction including low core loss, high permeability and low magnetostriction and is widely used in the transformer industry. Further it can obtain lower core loss by domain refinement treatment. 

Meanwhile non-oriented electrical steel,featured by random distribution of grain orientation and magnetic isotropy, is widely applicable to the motor industry.


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CRGO And CRNGO

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.


The difference between oriented silicon steel and non-oriented silicon steel Non-oriented silicon steel: ferrosilicon alloy with very low carbon content. In the deformed and annealed steel sheet, its grains are distributed randomly. The silicon content of the alloy is 1.5% to 3.0%, or the sum of the silicon and aluminum content is 1.8% to 4.0%. The products are usually cold-rolled plates or strips, which are mainly used to manufacture motors and generators.
Oriented silicon steel: It has strong directionality, the lowest iron loss value in the rolling direction, the highest magnetic permeability, and a higher magnetic induction value under a certain magnetization field. The silicon content of oriented silicon steel is about 3%. It also requires a low content of oxide inclusions in the steel and must contain certain inhibitors (MnS, A1N).

Electrical Steel(Silicon Steel Coil) Specification:

Product Name Electrical Steel, Lamination Steel, Silicon Electrical Steel, Silicon Steel, Relay Steel, Transformer Steel,CRGO Silicon Steel, Transformer Silicon Steel
Category Grain-Oriented Electrical Steel; Non-oriented electrical steel
Standard AISI, ASTM, BS, DIN, GB, JIS, EN
Thickness 0.18- 0.30 mm
Width 900-1200mm
Origin China
Packing Export standard package (as requirements)
Loading Port Tianjin, China (or any port in China )
Delivery time About 7-15 working days

silicon steel detail-3

Magnetic properties The magnetic properties of the product is featured by its low core loss, high permeability and excellent application performance.
Thickness tolerance The good thickness tolerance is characterized by small difference in thickness in
a direction parallel to the direction of rolling, small difference in thickness in a
direction perpendicular to the direction of rolling, and high lamination factor.
Processing property The product is suitable for punching and cutting with excellent dimensional
tolerance.
Insulation coating The  insulation coating  has small color deviation, good adhesiveness and
excellent  resistance to  heating  and  corrosion with  high  insulation  coating
resistance. There are several types of insulation coating available for production.
According  to  the  test  results  performed  by  the  professional  inspection
organizations,  the  contents  of  hazardous  substances  comply  with  all  the
prevailing  international  and  domestic  environment  protection  laws  and
regulations including EU RoHS and REACH regulations.
Different insulation coatings are available to meet a range of customer requirements according to interlaminar resistance, corrosion resistance, punchability, weldability and so on.

Coating code T2 H W
Component Inorganic Inorganic(not including Cr) No-glass-flm product
Lamination factor High High
Interlaminar resistance High High Very Low
Attachment Good Good
Corrosion resistance Very Good Very Good
Heat-resistance Withstands stress-relief annealing <820ºC under inert gas Withstands stress-relief annealing <820ºC under inert gas
Punchability Good Good For the production of extremely thin
Available thickness Available width range Inside diameter
mm mm mm
0.18,0.20 850-1200 508 ± 10
0.23,0.27,0.30,0.35 850-1200 508 ± 10

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Transformer Silicon Steel Advantage:

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.

Silicon Steel Application:

Varieties Conventional High induction Domain refined
high induction
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

application

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Silicon Steel Coil Packing&Delivery:

package and delivery

Our Guarantee:

1. Q: Can I get samples before order ?

A: Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings.

2. Q: What is your delivery time ?
A: Our delivery time is about one week, timing according to the number of customers.

3. Q: What is your payment terms?
A: Our usual payment methods are T/T, L/C,Western Union, payment methods can be negotiated and customized with customers.

4.Q: What do your factory do regarding quality control?
A: We have obtained ISO, CE and other certifications. From materials to products, we check every process to maintain good quality.

5. Q: How can you ensure what I got will be good ?
A: If the product fails in the inspection before leaving the factory, you can refuse to accept the goods.

6. Q: How do you make our business long-term and good relationship?
A:We keep good quality and competitive price to ensure our customers benefit ; We respect every customer as our friend and we sincerely do business and make friends with them. No matter where they come from.

7. Q: How about MOQ?
A: The minimum order quantity is 1 ton, which can be customized according to customer requirements. Please feel free to leave us message if you have any question about us and our products


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