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Silicon Steel

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.Was once known as "the arts and crafts of steel products"


Grain-oriented electrical 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 a random distribution of grain orientation and magnetic isotropy, is widely applicable to the motor industry.


We believe we will be helpful for the customer to design and manufacture more excellent electric and electrical products —— Quote Today!


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We have Silicon Steel Coil in Oriented and and non oriented type.

Material are 23Q110, 30Q120, 35Q145, 35WW230, 35WW250, 35WW270.

ASTM 36F145, 36F158, 36F168, 36F180, M80050A.


Silicon Steel Classification 

-Cold-rolled oriented silicon steel sheet/coil

The most important purpose of cold-rolled oriented silicon steel belt is for transformer manufacturing, so it is also called cold rolled transformer silicon steel.Compared with the cold-rolled non-oriented silicon steel, the magnetic orientation of the oriented silicon steel is strong.It has superior permeability and low loss characteristics in the direction of easy magnetization.The iron loss of the orientation steel strip in the direction of rolling is only one third of the horizontal one, and the ratio of the magnetic conductivity is 6:1, and the iron loss is about 1/2 of the hot-rolled belt, and the magnetic conductivity is 2.5 times that of the latter.

-Cold-rolled non-oriented silicon steel sheet/coil

The main purpose of cold-rolled non-oriented silicon steel is used for generator manufacturing, so it is also called cold rolled motor silicon steel.It has a silicon content of 0.5% to 3.0%, and the supply state is 0.35mm and 0.5mm thick steel strip after cold rolling to finished product thickness.The Bs of cold-rolled non-oriented silicon steel is higher than the oriented silicon steel.Compared with hot rolled silicon steel, its thickness is uniform, its dimension is high and its surface is smooth and smooth, thus the filling coefficient and magnetic energy of the material are improved.

-Hot rolled silicon steel sheet/coil

Hot rolled silicon steel sheet is Fe - Si alloy with open hearth and electric furnace melting, repeated hot rolled into sheet, finally, in 800-850 ℃ after annealing.Hot rolled silicon steel sheet is mainly used for the manufacture of generator, so it is also called hot rolled motor silicon steel sheet, but its utilization is low and the energy loss is large. In recent years, relevant departments have forced the elimination of the demand.


Video


Material Selection

Grain-Oriented Electrical Steel

VarietiesCommon typeHigh induction typeDomain 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


Insulating Coating

Insulating Coating
Coating typesM11M21
ComponentChromium containing , semi organic coatingChromium free, semi organic coating
Coating thickness(μm)0.7~1.50.8~5.0
Interlayer resistance(Ω•mm2 /slice)≥100≥100
Adhesive propertyClass A or class BClass A or class B
Punching propertyExcellentExcellent
Antirust propertyExcellentExcellent
Heat resisting propertyResistant annealing at 750 C, N2 protection, for 2hAnnealing resistance in general


Mechanical Property

Mechanical Property
GradeYeild Strength(N/mm2)Ultra-TensionStrength(N/mm2)Ductility(%)Hardness(HV1
M35W23043056020.0225
M35W25041555020.5220
M35W27040051520.5215
M35W30036048021.5195
M35W36035048023.5190
M35W44027542027.5165
M35W55026541533.5160
M50W25043056019.0230
M50W27041055021.5225
M50W29039554522.5220
M50W31038551024.5210
M50W35035047526.5190
M50W40032046036.0170
M50W47029542535.0160
M50W60028041037.0140
M50W80028540538.5135
M50W1300(D)25036040.0115


Applications

Fields Of ApplicationGrain-Oriented Electrical SteelNon-Oriented Electrical Steel
Series GSeries PSeries RSeries ASeries AHSeries ARSeries AT
230~400440~700800~1300230~470600~1000
RotatorsLarge-sized motors







Medium-sized motors






Compressor motors



General motors



Small-sized precision motors



Motors for electric cars





Static deviceHigh-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






Please reach out to our experienced sales manager with your requirements & we will be able to advise on stock availability and lead times.



Inspection Certificate

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Production Process

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Product Packing


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Product Packing Display

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