Electrical Steel Coil with High Magnetic Permeability and Customizable Thickness for Transformers

Product Introduction

Electrical Steel Coil2 is a premium silicon steel coil engineered for high-efficiency electromagnetic applications. Made from advanced grain-oriented or non-oriented silicon steel, this coil is designed to deliver exceptional magnetic permeability and minimized core losses. It serves as a critical component in transformers, electric motors, generators, and other energy conversion systems where reliable and efficient magnetic performance is essential.

Our coil is manufactured using state-of-the-art rolling and annealing processes, ensuring consistent thickness, superior surface insulation, and optimal grain alignment. Whether used in industrial power distribution, renewable energy systems, or high-precision electrical devices, Electrical Steel Coil2 provides a stable, low-loss magnetic path that enhances overall system efficiency and durability.

Product Parameters

• Material Type: Grain-oriented silicon steel (GOES) / Non-oriented silicon steel (NOES)
• Standard Grades: M-5, M-6, or equivalent; available in custom grades upon request
• Thickness: 0.35 mm, 0.50 mm, or as specified
• Coating: C-5 insulation coating (or customized inorganic/organic coatings)
• Core Loss (Typical): ≤ 1.2 W/kg at 1.5 T, 50 Hz (for GOES)
• Magnetic Induction: B800 ≥ 1.85 T
• Coil Dimensions:
  • Inner Diameter: 508 mm (20 inches) standard, adjustable
  • Outer Diameter: Up to 1500 mm (customizable)
  • Width: 800–1300 mm standard, tailored widths available
• Surface Resistivity: ≥ 20 Ω·cm²
• Flatness: ≤ 4 I‑units
• Packaging: Moisture-resistant wrapping, steel-protected edges, wooden pallets

Product Advantages

1. High Efficiency & Energy Savings
   The low core loss and high magnetic permeability significantly reduce energy waste in operation, helping to improve system efficiency and comply with international energy standards (e.g., IE, ENERGY STAR).

2. Excellent Consistency & Reliability
   Precision manufacturing ensures uniform thickness, flatness, and insulation, leading to stable magnetic characteristics, reduced noise, and extended service life in demanding applications.

3. Customizable for Various Applications
   Available in different grades, thicknesses, coatings, and coil sizes to match specific design requirements—from large power transformers to compact high-speed motors.

4. Superior Insulation & Durability
   High-quality coating provides excellent interlaminar resistance, mechanical protection, and corrosion resistance, ensuring performance stability even under high temperatures and humidity.

5. Cost‑Effective Solution
   By maximizing magnetic efficiency and reducing energy losses, our silicon steel coil helps lower total operating costs, offering a strong return on investment over the product lifecycle.

6. Global Compliance & Sustainability
   Meets international standards (IEC, ASTM, JIS) and supports green energy initiatives through improved efficiency and recyclable material composition.

Mellow Group have been a professional manufacturer in stainless steel industry since 2004.

As a leading stainless steel enterprise specialized in stainless steel coils and customized surface stainless steel material in China, Mellow group have total employees more than 600 people.

With our effective integration of production-supply-marketing resources, we would always provide you high quality products at competitive prices, prompt delivery, and best services.

With steady development for these years, our products are exported all over the world and mainly in Middle East, South-east Asia, Russia and Korea,etc and get a high reputation from both at home and abroad.