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Product Description


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.

Quick Details

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

Place of Origin: Shandong, China

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

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


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


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

Fields of 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







Inspection Certificate


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Product Packing


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Company Profile


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    Company Profile

Shandong Rigang Metal Products Co., Ltd  are specialized in the production and processing of metal 

raw material, With competitive price,high quality, on-time delivery, excellent service. Our products are

 well selling to Asia, Middle East,European countries etc. We are expecting to build up long-term cooperative 

relationships with customers all over the world. Combined with customer needs to customize product 

packaging, provide strong support for logistics in complex environment. Our products can meet every

 unique requirement for customers. We provide customized service. We can support clients to 

do quality inspection if needed. We can provide competitive price, good quality control, purchasing advice. 

Welcome consulting and ordering!

welcome your visiting to our factory at any time !


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Customer Cooperation


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Contact Us


 

Q&A

Q: What is silicon steel? What is electric steel?

A: Electric steel is magnetically soft material among functional material, and is most wildly used. 

Generally speaking, silicon steel refers to electric steel with silicon content between 0.5%~6.5% 

Si. The general electric steel also includes the part that contains little silicon (Si<0.5%). However, 

nowadays the 2 concepts are not clearly defined, and can be interchangeable.


Q: Classification of electric steel

A: It is roughly classified into hot-rolled electric steel and cold-rolled electric steel. Zhongyuantong 

steel produces cold-rolled electric steel, which can be further classified into oriented electric steel 

and non- oriented electric steel.


Q: What is magnetic field?

A: The space field for the acting force between the two magnetic poles is described as magnetic field 

strength H, the unit is A/m (Ampere/meter). It is the driving primary field produced by external input 

electric current after the electric steel is made into motor.


Q: Difference between electric steel B50A300 and B50AR300

A: B50A300 is whole processed product. It can be put into use after being purchased or annealing 

(reducing the loss through stress relief and construction perfection). But B50AR300 must go through 

annealing before use.


Q: Difference between whole processed silicon steel and semi- processed silicon steel

A: The target of whole processed non-oriented silicon steel annealing is to achieve targeted magnetic 

property (guarantee value), with the consideration of mechanical property required by stamping and

 the surface coating. The target of semi-processed product annealing is to achieve the mechanical 

property required by stamping. The manufactured magnetic property is so poor that the user has 

to do annealing and bluing to the magnet core so as to achieve the required magnetic property and 

surface insulation. There can be coating on the semi-processed non-oriented electric steel 

(applied in Japan market) or no coating (applied in American market, CRML).


Q: Influence of electric steel hardness on product process property

A: The mechanical property of the material has direct influence on the processing property. Various electric

 steel materials are used in various industries according to their characters. Processing mold and mold 

adjustment are critical to processing property. Zhongyuantong steel maintains the stability of product 

mechanical property and guarantees the user’s processing property.


Q: How does Zhongyuantong inspect the hardness of silicon steel material?

A: According to the silicon steel character (thickness, material), Zhongyuantong steel inspects with HV1 

standard. There is no conversion relation between Vickers Hardness, Brinell Hardness, Rockwell Hardness, 

and other Hardness, but there is empirical reference.


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