0.23mm CRGO Silicon Steel Cold Rolled Grain Oriented Silicon Electrical Steel Coil for Transformer
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Product Highlights
- Low Core Loss & High Permeability: Grain oriented electrical steel offers excellent magnetic properties with low core loss and high permeability.
- Wide Thickness Range: Available in thicknesses from 0.18mm to 0.5mm to meet diverse transformer requirements.
- Comprehensive Processing Services: Includes bending, welding, decoiling, cutting, and punching with excellent dimensional tolerance.
- Multiple Insulation Coating Options: Various coatings available for interlaminar resistance, corrosion resistance, and punchability.
- RoHS and REACH Compliance: Hazardous substance contents comply with EU RoHS and REACH regulations.
- Flexible Customization: Offers full, minor, and flexible customization from samples and designs.
- Strict Quality Assurance: Adheres to ISO9001, ECOCERT, and OMRI list standards with national property insurance coverage.
- 24/7 Professional Support: Engineers with over 6 years of experience provide immediate technical suggestions.
Product Attributes
- Customization
- Available
- Type
- Oriented Silicon Steel
- Standard
- GB
- Model NO.
- Silicon
- Technique
- Cold Rolled
- Shape
- EI Lamination
- Thickness
- 0.2 - 0.5
- Application
- Transformer Core
- 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 Images of 0.23mm CRGO Silicon Steel Cold Rolled Grain Oriented Silicon Electrical Steel Coil for Transformer
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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.




| 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. |
| 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 |
| 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 |





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!!!

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.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2451905". Items marked "" are certified.
Company Profile
Jinan Zunkai Materials Co., Ltd belongs to the Jinan Zunkai Group. Jinan Zunkai Group founded in 2008, 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 Rizhao Steel, Jinan Steel, Laiwu Steel, Handan Iron and Steel, Anyang Iron and Steel, Maanshan Iron and Steel and other domestic large steel companies. Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel manufacturing factory, and our stock always no less than 10, 000 tons.
Our company mainly engaged in: PPGI, galvanized steel, Roofing Sheet, AFP galvalume steel, stainless steel, steel pipes, H-beam, I-beam, angle, channel, flat steel, round steel, all profiles; Our own steel factory mainly produces seamless pipe, spiral pipe, square and rectangular tube, galvanized pipe and so on.
We always focused on the integration of resources, in line with the concept of win-win cooperation.
Zunkai regards moral integrity as fundamental, relying on advantages of resources, we will ensure the most reliable quality and very good prices.
Looking forward to be the best partner of different clients!
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 15 Lanxiang Road, Tianqiao District, Jinan, Shandong, China
-
Plant Area
- 2356 square meters
-
Number of Employees
- 50
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, within 15 workdays
-
Nearest Port
- Tianjin Port
-
Minimum Order Quantity
- 25 Tons
-
Supply Chain Partners
- 5
Our Production Capability & Technical Expertise
-
Main Products
- Roofing Sheet, Galvanized Steel, Galvalume Steel, Steel Plate, PPGI, H Beam, Angle Steel, Stainless Steel, Hot Steel Coil, Cold Steel Coil, Silicon Steel
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2016-01-20
-
Export Year
- 8 Years
-
Main Markets
- Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 39
-
Overseas Agent/Branch
- Yes
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE, RoHS
-
Cooperated with Fortune 500
- No
FAQ
- What is the minimum order quantity?
- The minimum order quantity is 25 tons.
- What thicknesses are available?
- Available thicknesses include 0.18, 0.20, 0.23, 0.27, 0.30, 0.35, and up to 0.5mm.
- What are the available width ranges?
- The width range is 50mm to 1250mm, with specific ranges like 850-1200mm for certain thicknesses.
- What certifications does the product have?
- The product complies with GB, ASTM, DIN, JIS, AISI standards and holds CE, RoHS certifications.
- What payment terms are accepted?
- Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, and small-amount payments.
- What is the lead time for production?
- The average lead time is within 15 workdays for both peak and off-peak seasons.
- Is customization available?
- Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization.
- What are the main applications for this steel?
- It is widely used for large and medium transformers, distributing transformers, voltage regulators, reactors, and various types of electrical transformers.
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