Grain-Oriented Electrical Steel (GOES) | Hi-B CGO & HGO Silicon Steel | Transformer Core Supplier
Huaxiao-Alloy supplies certified grain-oriented electrical steel (GOES) engineered to minimize core losses (P1.7/50 ≤ 0.90 W/kg) and maximize permeability in high-efficiency power transformers. Our laser-scribed Hi-B and CGO steels deliver 30% lower hysteresis losses vs. non-oriented grades, enabling compliance with DOE CUI, EU Tier DZ, and China GB 20052 energy standards.
Highest Quality Steel
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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 | Conventional GOES (CGO) | High Permeability (Hi-B) | Thin-Gauge HGO |
|---|---|---|---|
| Thickness | 0.27mm, 0.30mm | 0.23mm, 0.27mm | 0.18mm, 0.15mm |
| Core Loss (P1.7/50) | 1.10–0.90 W/kg | 0.85–0.65 W/kg | 0.95–0.75 W/kg* |
| Induction (B₈₀₀) | ≥1.88 T | ≥1.93 T | ≥1.90 T |
| Grades | M090-27P5, 30P105 | 23ZDKH85, 27ZDKH90 | JGHF® 0.18mm |
| Coating | C-5 Phosphate | C-6 Chromate/ZML | Laser-Insulated |
*P1.0/400 values for high-frequency applications
Critical Advantages:
➠ Magnetic Anisotropy: 90% grain alignment → 30% higher permeability vs. NGOES in rolling direction
➠ Domain Refinement: Laser/mechanical scribing cuts hysteresis loss by 15–25%
➠ High-Temp Stability: Withstands 800°C anneal without magnetic degradation
➠ Harmonic Mitigation: Lowers no-load loss and audible noise (<65 dB) in distribution transformers
Processing & Surface Coating
At Huaxiao-Alloy, 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.
What Is Grain-Oriented Electrical Steel (GOES)?
Grain-Oriented Electrical Steel (GOES) is a specialized type of silicon steel processed to produce a preferred crystallographic grain orientation, offering superior magnetic properties in one direction. This makes it the ideal core material for power transformers, distribution transformers, and other high-efficiency electrical applications.
At Huaxiao-Alloy, we supply high-quality GOES with low core loss, high permeability, and uniform insulation coatings—engineered to meet international standards and optimized for lamination and precision slitting.
Product Specifications
| Property | Typical Value / Range |
|---|---|
| Silicon Content | 2.9% – 3.5% |
| Thickness | 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 |
Custom grades and specifications available upon request.
Packaging & Delivery
Coil ID: 508mm / 610mm (Eye-to-Sky or Eye-to-Wall)
Customized width and length upon request
Moisture-proof packaging, steel-strapped and palletized
Export documents: Mill Test Certificate, Packing List, Invoice, Certificate of Origin
Applications of GOES
Grain-Oriented Electrical Steel is designed specifically for static equipment where magnetic flux is mostly unidirectional. Key applications include:
Power Transformers
Large-scale high-voltage step-up and step-down transformers for utility gridsDistribution Transformers
Used in urban, rural, and industrial distribution networks for energy efficiencyInstrument Transformers
Voltage and current transformers for measurement and protection circuitsShunt Reactors
Power system equipment requiring low loss magnetic materialsMagnetic Core Assemblies
Customized transformer cores, E-I laminations, and step-lap cores
Contact Huaxiao-Alloy for GOES Inquiries
Looking for a reliable Grain-Oriented Electrical Steel supplier? Partner with Huaxiao-Alloy for high-quality material, fast response, and competitive pricing.
- Loss Leader Grades: Hi-B steel meeting Cigré TB 803 specs (P1.7/50 ≤ 0.85 W/kg)
- Advanced Processing: Domain refinement (laser/mechanical) & dual-layer insulation coatings
- Compliance: Full traceability to JIS C 2553, IEC 60404-8-7, ASTM A876
- OEM Validation: Certified for ABB/Siemens/SGB-SMIT transformer designs
- Sustainability: Lower core loss → 500+ tonnes CO₂ reduction per 100 MVA transformer
📩 Email: [email protected]
🌐 Website: www.huaxiao-alloy.com
📞 Phone / WhatsApp: +1 (579) 300-2733
CUTTING-EDGE APPLICATIONS
HGO for High-Frequency Transformers
- 0.15mm JGHF® Steel: Enables >200 kHz switching (P1.0/400 < 40 W/kg)
- EV Fast Chargers: 25% smaller core volume vs. ferrite
- Renewable Integration: Weight-optimized offshore wind farm transformers
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