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Home » Products » Silicon Steel » Grain-oriented Silicon Steel
Grain-oriented Silicon Steel
Product Description

Jiangsu Zhongzhilian Steel Industry Co., Ltd.,

Contact person: Lidia

Tel:+86-13395130198

Email: lidia@zlyssteel.com

What’app: 0086-13395130198

Skype:0086-13395130198

Wechat : 0086-13395130198

Product Features

Electrical steel usually referred to as cold-rolled electrical steel, can be divided into two major categories including grain-oriented electrical steel and non-oriented electrical steel. 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.

The grain-oriented silicon steel is a kind of electrical steel with its easy magnetization direction parallel to the rolling direction and a silicon content of around 3%. The grain-oriented silicon steel can be divided into two major categories including common grain-oriented silicon steel and high magnetic induction grain-oriented silicon steel. It is mostly applicable to the field of power transmission (such as transformers) and is an important functional metal material in the electrical power, electronic and military industries.

Grain-orientedsilicon steel has long been known as the art work of steel, which are technologically sophisticated and technically complicated. Whether to master the technology for producing the grain-oriented silicon steel has always been used as an indicator of a steel manufacturer’s technological capability. 


Features of Silicon Steel
Great Electromagnetic Performance
The silicon steel comes with low iron loss and high magnetic induction, especially HiB steel which has lower iron loss and higher magnetic induction.

Good Shape
The material is often made in strips. Slight longitudinal and transverse thickness difference ensures a high lamination factor.
Insulating Coating
Uniform color, excellent insulative, high adhesion strength, high heat resistance, excellent processability, and superior corrosion resistance. Our silicon steel sheet is available in multiple insulating coating options, which have been reaching and RoHS certified that harmful matter content complies with domestic and overseas regulations on environmental protection.
Excellent Processability
Accessible to die-cut, with high dimensional accuracy.
Surface Quality
Our silicon steel features a smooth surface, without defects such as rust, rolling marks, holes, cold-lap,folds, bubbles, etc


Mechanical Property

Mechanical Property

Grade

Yeild Strength
(N/mm2)

Ultra
-Tension
Strength
(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


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


Fields of Application

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

 

 

 

 

 

 


Material Selection - Grain-oriented electrical steel

Varieties

Common type

High induction type

Domain refined
high 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

 

 


Inspection Certificate


Production Process - Grain-orientedsilicon steel


Product Packing




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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