Product model
20RK070
The electromagnetic performance
| Grade |
Nominal thickness |
Theoretical density |
Max.Core loss |
Min. Induction |
Min. Lamination factor |
| |
mm |
kg/dm³ |
W/kg |
T |
% |
| 20RK070 |
0.20 |
7.65 |
0.70 |
1.86 |
93.0 |
Product introduction
Electrical steel,usually referring to cold rolled electrical steel, can be divided into two major categories including qrain 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
Product features
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 productis 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 tvpes of insulation coatina 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-film product |
| Lamination facton |
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 |
Brand representation
The steel grade comprises the following in the order given:
1)onehundred times the nominal thickness of the material, in millimeters:
2)characteristic letter
Q: capital letter of Chinese Pinyin "Qu":
G: capital letter of Chinese Pinyin "Gao".
RK: domain refined grades by laser scribing, to be deteriorated when
subjected to heat treatment.
3)onehundred times the maximum value of specific total loss in watts per
kilogram at 1.7 T and 50 Hz. unless otherwise specified.
Examples:
Conventional grain oriented electrical steel with the maximum specific total loss of 1.2 W/kg at 1.7Tand 50 Hzand a nominal thickness of 0.30 mm shall be designated as 30Q120.
High permeability grain oriented electrical steel with the maximum specific total loss of 1.2 W/kg at 1.7 Tand 50 Hz and a nominal thickness of 0.30 mm shall be desianated as 300G120.
High permeability grain oriented electrical steel, domain refined by laserscribing, with the maximum specific total loss of 0.90 W/ka at 1.7 Tand 50 Hz and a nominal thickness of 0.27 mm shall be designated as 27RK090.
Product specification
| 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 |
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 |
|
★ |
|
Solucky steel Limited is a third-party supply chain service enterprise focusing on materials for automobiles, high-end household appliances, as well as material processing and storage. Its headquarters and warehouse base are set up in Shanghai BaoShan, and has branches all over the country, 20+ subsidiary companies,including Foshan, Guangdong, Chongqing, Wuxi, etcz.
Main Products
Product Application
Machines & Processing
Packing & Delivery & logistics
Why Choose Us
FAQ
1.Where is your factory?
Our head office and warehouse located in Shanghai--the biggest steel making center of China
2.How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
3.What about the MOQ?
MOQ only 200KG,include coils and sheets
4. How long is your lead time?
In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
5.How's your product quality?
We only sell mid to high end steel materials,100% quality guarantee and cost-effective.
6.What are your terms of payment?
You can make the payment to our bank account,T/T, 30% deposit in advance, 70% balance against the copy of B/L.
7.How many countries you already exported to?
We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
8.What are the certifications for your products?
We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Audited Supplier 
Solucky steel Limited is a third-party supply chain service enterprise focusing on materials for automobiles, high-end household appliances, as well as material processing and storage. Its headquarters and warehouse base are set up in Shanghai BaoShan, and has branches all over the country, 20+ subsidiary companies,including Foshan, Guangdong, Chongqing, Wuxi, etcz.
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