Grain-Oriented Electrical Silicon Steel Coil Used for Oil Immersion Transformer

• Type: Oriented Silicon Steel
• Standard: GB
• Technique: Cold Rolled
• Shape: EI Lamination
• Thickness: 0.2 - 0.5
• Application: Transformer Core
• Model NO.: 23Q110 23Q120 27Q95 27Q100
• Width: 50-1250mm
• Surface Treatment: Coated
• Grade: Silicon Iron Alloy
• Certificate: GB, ASTM, DIN, JIS, AISI
• Color: Silver Gray
• Processing Service: Bending, Welding, Decoiling, Cutting, Punching
• Transport Package: Standard Sea Worthy Packing
• Trademark: ZunKai
• Origin: China
• Production Capacity: 40000 Tons / Year

Product Description

Product Description

Electical steel, usually referring to 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 random distribution of grain orientation and magnetic isotropy, is
widely applicable to the motor industry.

Production Process

Product Parameters

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 material

Recommended  Applications 

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		★

 

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

 

Packaging & Shipping

 

Company Profile

Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300,000 tons steel.

Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Bao Steel, Laiwu Steel, Rizhao Steel, Handan Steel, Anyang Steel, Maanshan Steel and other domestic large steel companies.

Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel process factory with 100000 Square meter for steel laser cutting, surface treatment and other further processing , and our stock always more than 20,000 tons.

Zunkai Group mainly engaged in : PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc .

Our good quality and reliable service will be your best trusted partner.

Sincerely wish to building long and regular business with you forever!!!

Our Service

1. Immediate Respond.
All the customers have Zunkai Group full attention, we will be 24/7 on line at your services to provide the immediate and professional suggestion. Zunkai Group  has exported to more than 30 countries in the world.
We could provide you the immediate respond services with our sincerity.


2.Professional Suggestion.
With decade commitment, more than 90% technician has incepted the mechanical bachelor degree in Zunkai team, and almost 60% has more than 6 years' steel manufacturing and consulting experiences.
We could provide you the professional suggestion with our sincerity.


3.Strict QA/QC Procedure.
Zunkai Group as the bankable manufacturer, always cherish the quality as the lifetime.
We abide by the strict quality control(QC)ans quality Assurance(QA) procedure.


4.Warranty issued.
In order to assure the customers, Zunkai Group covered the national property insurance.
We are also sanctioned by all the different testing center which is mandatory, including ISO9001, ECOCERT, OMRI list etc.