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Help Center0.27 mm Thick, 1000 mm Wide CROG Electrical Silicon Steel Coil for Transformers
Product Spotlights
Silicon steel coil offers high magnetic induction, boosting motor efficiency.
High permeability silicon steel strip ensures good lamination, aiding core fabrication.
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Grain-Oriented Electrical Silicon Steel Coils (CRGO) From a Chinese Factory — Silicon Electrical Steel Sheets and Coils for LaminationUS$ 620 - 652MOQ: 10 Metric Tons
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Non-Oriented Silicon Steel Coil 35W250 — 0.35mm, Low Iron Loss (P1.5/50: 2.5 W/kg)US$ 620 - 652MOQ: 10 Metric Tons
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Factory Direct Sale: Best Price Cold-Rolled 0.3mm/0.2mm Grain-Oriented Electrical Silicon Steel Coils (50W350)US$ 620 - 652MOQ: 10 Metric Tons
Silicon steel coil, also known as electrical steel or cold-rolled silicon steel, is a soft magnetic iron-silicon alloy containing 0.5%–4.5% silicon. It is primarily used to manufacture cores for motors, transformers, and inductors. The key performance requirements are low core loss (iron loss) and high magnetic permeability. Common grades include: 50W800, 50W1300, 35W270, 35W440, B50A470, B35A210, 23Q110, etc. In these designations, W stands for Non-Oriented (NO), while Q or R stands for Grain-Oriented (GO). Grain-oriented silicon steel (e.g., 23Q110) offers excellent magnetic properties along the rolling direction and is ideal for transformers. Non-oriented silicon steel (e.g., 50W1300) is isotropic and suitable for rotating machines.
Applications:
Motors: home appliances (air conditioners, refrigerators, washing machines), industrial motors, EV traction motors
Transformers: power transformers, distribution transformers, reactors
Small inductors: ballasts, relays, current transformers
Customer Common Terms & Abbreviations:
CRGO: Cold-Rolled Grain-Oriented steel
CRNGO: Cold-Rolled Non-Oriented steel
Core loss (iron loss): unit W/kg (e.g., P1.5/50 = 1.5 Tesla, 50Hz)
Magnetic induction: B50 (flux density at 5000 A/m)
Laminations: stacked core sheets
Annealing: heat treatment to relieve stress
Insulation coating: T2, T3, T4 types
Thickness specifications: 0.23mm, 0.27mm, 0.30mm, 0.35mm, 0.50mm
When placing orders, customers typically define technical requirements using grades (e.g., 50W1300 or 23Q110), CRGO/CRNGO, core loss values, and thickness.
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