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Help CenterGB/T 2521 Oriented Electrical Steel Sheet 30Q130 With Insulation Coating and Epstein Testing
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Quality-Tested Electrical Steel for Precision Transformer Cores
This GB/T 2521 30Q130 oriented electrical steel sheet is insulation coated and Epstein tested to ensure reliable magnetic performance. It is widely used in transformer core manufacturing where strict quality control and energy efficiency are required.
Key Specifications (Grain-Oriented Silicon Steel Coil)
Parameter |
Specification / Range |
Remarks |
Standards |
ASTM A876, IEC 60404-8-4, GB/T 2521 |
Others on request |
Grades |
23Q110, 27Q120, 30Q130, 35Q145 |
High-permeability available |
Thickness |
0.18 mm – 0.35 mm |
– |
Width |
600 mm – 1250 mm |
Slit edge available |
Core Loss P1.7 (50Hz) |
0.8 – 1.2 W/kg |
– |
Magnetic Induction B8 |
≥1.80 – 1.88 T |
– |
Coating |
C-5 (T1) / C-6 (T2) insulation coating |
– |
Density |
7.65 g/cm³ |
– |
Testing |
Epstein frame, tension, coating continuity |
Mill cert provided |
Packaging |
Rust-proof paper + steel strapping + wooden pallet |
Seaworthy, ISPM 15 |
Q1：Do you offer sample orders？
A：Yes, samples are available for quality evaluation. Sample cost is charged but refundable upon bulk order.
Q2：What is your MOQ？
A：Our standard MOQ is 100 kg per specification. For common grades and standard sizes, we accept small batch orders. Mixed orders for different products are also welcome.
Q3：Can you provide custom sizes？
A：Yes, we can produce any length, width, thickness, or diameter based on your drawings. Cutting, slitting, and other processing services are available with tolerance as required.
Q4：What certifications do you provide？
A：Each shipment comes with EN 10204 3.1 mill test certificate (MTC). Third-party inspection reports (SGS/BV/TÜV) can be arranged upon request.
Q5：What is your lead time？
A：7–15 working days for stock items. 20–30 days for custom orders, depending on quantity and specification.
Q6：What surface treatments are available？
A：Various surface treatments are available upon request, including pickled, polished, coated, oiled, or as required.
Q7：What payment terms do you accept？
A：T/T (30% deposit + 70% against BL copy), L/C at sight, Western Union, etc.
Q8：What about packaging for export？
A：Standard seaworthy packaging with waterproof protection, steel straps, corner protectors, and ISPM 15 fumigation certification. Custom packaging is available as required.
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