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Help CenterGrain Oriented Electrical Steel 35Q145 0.35mm IEC 60404 High Induction Transformer Core Plate
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High Induction Grain Oriented Transformer Core Plate 35Q145
The 35Q145 grain oriented electrical steel plate is designed for transformer cores requiring high magnetic induction and mechanical strength. It is widely used in power transformers, reactors, and industrial electrical systems where reliability and efficiency are critical.
What Is Silicon Steel Coil？
Product Definition：
Silicon steel, also known as electrical steel or transformer steel, is a low-carbon silicon-iron alloy with silicon content typically between 0.5% and 4.5%-6. The addition of silicon increases electrical resistivity and maximum permeability, while reducing core loss (hysteresis loss) and magnetic aging-5-11. It is the most important soft magnetic material for power equipment.
Two Main Types of Silicon Steel：
| Feature | Grain-Oriented Silicon Steel (GO / CRGO) | Non-Oriented Silicon Steel (NO / CRNGO) |
|---|---|---|
| Grain Structure | Grains oriented in one direction (Goss texture) | Grains distributed randomly-1-5 |
| Silicon Content | ≥3.0% (typically 3.0-4.5%) | 0.5-3.0%-1-6 |
| Thickness | 0.18 – 0.35 mm | 0.35 – 0.65 mm-1-5 |
| Core Loss | Lower (P1.7 0.8–1.2 W/kg) | Higher (P1.5 3.0–6.5+ W/kg) |
| Magnetic Direction | Strong directional (best along rolling direction) | Isotropic (uniform in all directions)-1 |
| Primary Application | Transformers (power/distribution) | Motors, generators, compressors-5-11 |
| Manufacturing Complexity | More complex (multiple annealing steps) | Simpler-5 |
Key Characteristics – Both Types：
| Feature | Description |
|---|---|
| Low Core Loss | Minimizes energy waste during magnetization cycles – reduces operating cost of electrical equipment |
| High Permeability | Efficient magnetic flux conduction – reduces size/weight of cores |
| High Lamination Factor | Smooth, uniform surface enables tight stacking efficiency ≥97%-2-3-6 |
| Good Punchability | Suitable for stamping and cutting for core manufacturing-1 |
| Insulation Coating | C-5 / C-6 coating reduces eddy current losses between laminations-2-6 |
| 100% Recyclable | Sustainable material with excellent recyclability |
Typical Applications：
| Industry | Application | Recommended Type |
|---|---|---|
| Power Generation & Distribution | Transformers (power, distribution, instrument) | Grain-Oriented (CRGO)-5-11 |
| Electric Motors | AC motors, DC motors, servo motors, traction motors | Non-Oriented (CRNGO)-1-11 |
| Home Appliances | Compressors (refrigerators, air conditioners), washing machines | Non-Oriented (CRNGO)-11 |
| Automotive | EV drive motors, starter motors, alternators | Non-Oriented (CRNGO)-11 |
| New Energy | Wind turbines, solar inverters, EV charging stations | Both types |
| Electronics | Chokes, inductors, transformers for power supplies | Grain-Oriented |
Each batch includes EN 10204 3.1 mill test certificate with full magnetic performance data. Third-party inspection (SGS, BV, TÜV) supported. MOQ: 5–10 tons for trial orders.
Key Specifications – Silicon Steel Coil
Grain-Oriented Silicon Steel (CRGO)：
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | ASTM A876, IEC 60404-8-4, JIS G3304, GB/T 2521 | Others on request |
| Grades (Common) | 23Q110, 23Q120, 27Q120, 30Q120, 30Q130, 35Q145 | Iron loss based classification-2-6 |
| Grades (High Induction) | 23QG085, 23QG090, 23QG095, 27QG095, 27QG100, 30QG100, 30QG105 | High permeability grades-6 |
| Grades (Domain Refined) | 23R080, 23R085, 27R090, 27R095, 30R100 | Laser refined, ultra-low loss-2 |
| Thickness | 0.18 mm – 0.35 mm | 0.23, 0.27, 0.30, 0.35mm common-1-5 |
| Width | 600 mm – 1250 mm | Custom slitting available-2-6 |
| Coil ID | 508 mm (standard) | 610mm on request |
| Core Loss P1.7 (50Hz) | 0.80 – 1.20 W/kg | Grade dependent-2-6 |
| Magnetic Induction B8 | ≥1.80 – 1.90 T | High induction grades up to 1.90T-2-6 |
| Lamination Factor | ≥97% | -2 |
| Coating | C-5 (T1), C-6 (T2) insulation coating | Reduces eddy current loss-2-6 |
| Brands Available | Baosteel, WISCO, Shougang, Nippon Steel, JFE, AK-6 | – |
Non-Oriented Silicon Steel (CRNGO)：
| Parameter | Specification / Range | Remarks |
|---|---|---|
| Standards | ASTM A677, IEC 60404-8-4, GB/T 2521, EN 10106 | Others on request |
| Grades (50 Series) | 50W800, 50W600, 50W470, 50W400, 50W310, 50W250, 50W1300 | 0.5mm thickness, P1.5 values-3-6 |
| Grades (35 Series) | 35W250, 35W270, 35W300, 35W440, 35W550 | 0.35mm thickness-3-6 |
| Grades (High Grade) | 35WW230, 35WW250, 50WW230, 50WW250 | Low loss motor grades-3 |
| Thickness | 0.35 mm – 0.65 mm | 0.35, 0.50, 0.65mm common-3-7 |
| Width | 600 mm – 1250 mm | Custom slitting available |
| Coil ID | 508 mm (standard) | – |
| Core Loss P1.5 (50Hz) | 2.3 – 13.0 W/kg | Grade dependent-3 |
| Magnetic Induction B50 | ≥1.62 – 1.72 T | Grade dependent-3 |
| Lamination Factor | ≥95 – 97% | – |
| Density | 7.60 – 7.85 g/cm³ | Grade dependent-3-7 |
| Coating | C-3 / C-5 / C-6 insulation coating | – |
Wuxi Yansheng Technology Co., Ltd. – Company Profile
Wuxi Yansheng Technology Co., Ltd. is a comprehensive technology enterprise specializing in high-quality metal raw material supply and precision processing services. Located in Wuxi City, a major steel distribution center in China, the company leverages the mature industrial chain advantages of the Yangtze River Delta region to provide professional material solutions to global customers.
As a technology-driven enterprise, Yansheng Tech maintains strategic cooperation with several well-known steel mills (such as TISCO, Baosteel, JISCO, Dongfang Special Steel, etc.) and is an authorized distributor of these mills. Our main products include stainless steel (304/316/BA/EP pipe), carbon steel, silicon steel, copper, aluminum and other materials in the form of sheets, pipes, coils, as well as custom-processed parts.
Core Business Highlights:
Material Supply: We maintain sufficient stock inventory, offering 304/316 stainless steel sheets, pipes, coils, API 5L casing, electrical steel, and more. We also accept orders for special steel grades and non-standard specifications.
Precision Processing: Equipped with imported mirror polishing machines, water jet cutting machines, high-precision slitting/leveling lines, large CNC milling machines, boring machines, and more. We provide customized services including BA/EP pipe finishing, medium plate polishing, matte finishing, embossing, plasma cutting, etc.
Main Applications: Our products are widely used in industries such as solar energy, pressure vessels, boilers, electric heating equipment, petrochemicals, environmental protection machinery, pharmaceutical and food processing, and new energy vehicles.
Our processing center is located in Xishan District, Wuxi City, covering nearly 10,000 square meters, with an experienced technical and service team. We adhere to the business philosophy of "Technology First, Quality Oriented, Service Supreme" , providing 24/7 warehousing and logistics support as well as comprehensive after-sales service. Yansheng Tech is committed to being your trusted long-term partner.
Frequently Asked Questions (FAQ)
Q1. What products do you mainly supply?
We mainly supply stainless steel (304/316/BA/EP pipes), carbon steel, silicon steel, copper, aluminum, and other materials in sheets, pipes, and coils. Customized processing services are also available.
Q2. Do you have stock available?
Yes, we maintain sufficient stock for most standard specifications. For non-standard sizes, we can accept orders with reasonable lead time.
Q3. Can you provide MTC (Mill Test Certificate)?
Yes, we provide MTC for every shipment. Third-party inspection (SGS, TÜV, BV, etc.) is also available upon request.
Q4. Do you support video inspection before shipment?
Yes, we fully support video inspection. You can also arrange an agent or third party to visit our factory for on-site inspection before shipment.
Q5. What are your main export markets?
We export to Southeast Asia, the Middle East, Europe, Africa, and South America. We have rich experience in international trade and export documentation.
Q6. What payment terms do you accept?
We accept T/T (wire transfer), L/C at sight (irrevocable), and sometimes a combination of T/T deposit + L/C balance. Payment terms are negotiable based on order size and customer history.
Q7. Can you provide samples?
Yes, samples are available for most standard products. For custom sizes, we may need to produce small batch samples. Sample cost and shipping are usually borne by the customer, but can be discussed.
Q8. What is your typical lead time?
For stock items: 7–10 days after order confirmation. For custom production: 20–30 days, depending on the specification and quantity.
Q9. What quality certifications do you have?
We provide MTC with every shipment. Our partner mills are ISO9001 certified. We can also assist with third-party inspections (SGS, TÜV, BV) upon request.
Q10. How can I get a quotation?
Please send us your material grade, specification (size, thickness, length), quantity, and preferred trade term (FOB, CIF, DAP, etc.). We will reply with a detailed quotation within 24 hours.
Send Inquiry to This Supplier
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