M3 Grain-Oriented Electrical Steel
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M3 Grain-Oriented Electrical Steel
Thickness: Typically 0.23 mm
Core Loss: ≤ 0.90 W/kg at 1.7 Tesla, 50 Hz
Magnetic Induction (B800): ≥ 1.88 Tesla
Grades Available: M3, 23CG120, 27CG120
Available GOES Grades
| Standard | Typical Grades | Application |
|---|---|---|
| ASTM A876 | M-2, M-3, M-4 | Transformer cores (USA, global) |
| JIS C2553 | 30Z155, 27Z130 | Japanese transformer manufacturers |
| EN 10107 | M0H, M3H, M5H | European high-grade transformer steel |
| IEC 60404-8-7 | CGO, HGO | International classification |
Types of GOES We Supply
1. Conventional Grain-Oriented (CGO)
Used in general-purpose transformers, offers balanced cost and performance.
2. High Permeability Grain-Oriented (HGO)
Improved magnetic induction and lower core loss, widely used in energy-efficient and low-noise transformers.
3. Laser-Scribed GOES (Hi-B / Ultra HGO)
Enhanced domain refinement for ultra-low loss applications; enables compact and efficient transformer design.
Key Technical Properties
| Parameter | |||
|---|---|---|---|
| 0.27mm, 0.30mm | 0.23mm, 0.27mm | 0.18mm, 0.15mm | |
| 1.10–0.90 W/kg | 0.95–0.75 W/kg* | ||
| ≥1.88 T | ≥1.93 T | ≥1.90 T | |
| M090-27P5, 30P105 | JGHF® 0.18mm | ||
| C-5 Phosphate | C-6 Chromate/ZML | Laser-Insulated |
Processing & Surface Coating
GOES is supplied with insulation coatings suited for transformer manufacturing:
C-5 (Fully Insulated) – High resistance, heat-resistant coating
C-9 (Semi-Insulated) – Balance between insulation and weldability
Phosphate or Organic Coatings – For specific lamination bonding applications
We provide both un-slitted coils and ready-to-stack laminations.
Product Specifications
| Property | Typical Value / Range |
|---|---|
| Silicon Content | 2.9% – 3.5% |
| ความหนา | 0.18 mm – 0.35 mm |
| Magnetic Induction (B800) | ≥ 1.88 T |
| Core Loss (P17/50) | ≤ 1.0 W/kg (depending on grade) |
| Grain Orientation | Goss texture {110}<001> |
| Coating Type | C-5, C-9, or customized insulation |
| Surface Resistance | > 20 Ω/sq (depending on coating) |
| International Standards | ASTM A876, IEC 60404-8-7, JIS C2553 |
Packaging & Delivery

Applications of GOES

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