Our Silicon Steel Sheets & Coils are high-quality iron-silicon alloys (0.5–4.5% Si) optimized for energy efficiency and superior magnetic performance. We offer both Cold-Rolled Non-Grain Oriented (CRNGO) and Grain-Oriented (CRGO) variants used in transformers, motors, inductors, and a wide range of electrical applications
Technical Specifications & Grades
| Type | Grade | Core Loss (W/kg @1.5 T, 50 Hz) | Thickness |
|---|---|---|---|
| CRNGO | 50W800 | ≤5.8 | ~0.50 mm |
| CRNGO | 50W600 | ≤4.2 | ~0.35 mm |
| CRGO | 30Q130 | ≤1.3 | ~0.30 mm |
-
Silicon Content: 2.9–3.5% (CRNGO), 2.8–3.2% (CRGO)
-
Extremely Low Carbon after decarburization (≤0.005%)
-
Insulations: C5 or C6 coatings (3–6 µm, ≥20 Ω·cm²) to reduce eddy currents
Key Advantages
-
Low Iron Loss: Core losses as low as 1.2 W/kg at 1.5 T; CRNGO offers 40% less hysteresis vs. traditional steel
-
High Magnetic Permeability: μₘₐₓ of 1,500–2,000, enabling fast magnetic flux alignment
-
Smooth Surface Finish: Ra ≤0.8 µm, minimizing air gaps and boosting magnetic efficiency
-
Wide Standards Compliance: Meets ASTM A683, IEC 60404-8, JIS C 2553 requirements
Key Applications
-
Energy Distribution: Transformer cores (30Q130, 50W600, 50W800) with >98% efficiency
-
E‑Mobility: CRNGO steels (0.35 mm) cut eddy current losses by ~25% in EV motors
-
High-Frequency Electronics: Thin CRGO laminations for inductors running at 100–500 kHz
-
Motors & Generators: CRNGO grades deliver consistent performance in rotating machinery
Manufacturing & Quality Assurance
-
Production Process: High-temperature hot rolling → precision cold rolling (85–93% reduction) → decarburization annealing (~820°C in H₂/N₂)
-
Testing Standards: Core loss (Epstein frame, IEC 60404-2), coating adhesion (ISO 2409 Grade 0), tight dimensional tolerances
Why Choose Our Silicon Steel?
-
Energy Efficient – Low losses and high permeability enhance system performance
-
Versatile Range – Choose from CRNGO and CRGO grades based on your application
-
Custom Sizes – Coils up to 1,250 mm wide, lengths to order; thickness from 0.10–0.50 mm
-
Quality Inspections – Each batch verified for core loss, coating adhesion, and magnetic durability
-
Global Ready – Certifications and specifications tailored to international markets
📞 Engage with Us for Expert Solutions
Tell us your application—transformer, motor, or inductor—and we’ll match you with:
-
The best grade and lamination thickness
-
Technical datasheets and magnetic performance profiles
-
Custom samples and factory quotes
-
Fast global shipping options
👉 Contact us today to boost efficiency and precision with our premium silicon steel solutions.