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Help Center35W440 Silicon Steel Coil Cold Rolled Electrical Steel Strip for Industrial Generator Core
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35W440 Electrical Steel for Generator Cores
35W440 cold rolled electrical steel strip is widely used in industrial generator core production due to its stable magnetic properties and reliable processing performance. Featuring controlled core loss, accurate thickness, and good mechanical strength, it supports efficient energy conversion in generators, motors, and power equipment. The material helps improve operational efficiency and extend equipment service life.
Key Specifications (Non-Oriented Silicon Steel Coil)
Parameter |
Specification / Range |
Remarks |
Standards |
ASTM A677, IEC 60404-8-4, GB/T 2521 |
Others on request |
Grades |
50W800, 50W600, 35W440, 65W1300 |
– |
Thickness |
0.35 mm – 0.65 mm |
– |
Width |
600 mm – 1250 mm |
Slit edge available |
Core Loss (50Hz) |
P1.5: 3.0 – 6.5 W/kg |
Grade dependent |
Magnetic Induction B50 |
≥1.65 – 1.75 T |
– |
Coating |
C-3 / C-5 / C-6 insulation coating |
– |
Density |
7.75 – 7.80 g/cm³ |
– |
Testing |
Epstein frame, tensile, hardness |
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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