What is known as electrical steel?

Q: 01 - What’s the difference between CRGO and CRNGO?

A: CRGO (Grain-Oriented) has directionally optimized efficiency for transformers. CRNGO (Non-Oriented) offers uniform properties for motors/generators.

Q: 04 - Do you supply thin gauges (

A: Yes – 0.15mm/0.18mm HGO in stock for EV charger (50–150 kHz) and aerospace applications.

June 27, 2025
12:42 am
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Electrical steel (also termed silicon steel, lamination steel, or transformer steel) is a specialized iron-silicon alloy engineered to maximize magnetic efficiency while minimizing energy losses in electromagnetic devices. Constituting 90–98% iron and 1–6.5% silicon, it is the backbone of:

Power grids (>99% transformer efficiency)
Electric vehicles (95%+ motor efficiency)
Renewable energy systems
At Huaxiao-Alloy, we supply precision electrical steel certified to IEC, ASTM, and OEM standards for mission-critical applications.

SECTION 1: THE SCIENCE BEHIND ELECTRICAL STEEL

Core Properties & Industry Metrics

Property	Function	Test Standard
Low Core Loss (P<sub>1.5/50</sub>)	↓ Hysteresis/eddy current losses	IEC 60404-2 (Epstein)
High Permeability (µ)	↑ Magnetic flux density (B<sub>sat</sub> up to 2.0T)	ASTM A772
Thickness Control	↓ Eddy currents (0.15–0.65mm ±0.02mm)	ISO 9444
Insulation Coating	Prevents inter-lamination shorts	ASTM A976

Material Innovation Drivers:

Silicon (3–6.5%): ↑ Resistivity → ↓ eddy currents by 50%
Ultra-Low Carbon (<0.003%): Prevents magnetic aging
Laser Domain Refinement: Reduces hysteresis loss 20–30%

SECTION 2: TYPES & APPLICATIONS of ELECTRICAL STEEL

1. Non-Grain Oriented Steel (NGOES/CRNGO)

Structure: Random crystal orientation → isotropic magnetic properties
Applications: Rotating equipment (motors, generators)
Huaxiao-Alloy NGOES Solutions:
- 35H300: 0.35mm | P1.5/50 ≤4.0 W/kg | IEC 60404-8-4
 For industrial pumps, HVAC compressors
- JNEH8000: 0.30mm | P1.0/400 ≤25 W/kg | JIS C 2553
 EV traction motors, aerospace actuators

2. Grain-Oriented Steel (GOES/CRGO)

Structure: 90% Goss texture ([110]<001> orientation) → anisotropic efficiency
Applications: Transformer cores, high-frequency inductors
Huaxiao-Alloy GOES Solutions:
- 27ZDKH90 (Hi-B): 0.27mm | P1.7/50 ≤0.85 W/kg | IEC 60404-8-7
 500MVA power transformers, offshore wind substations
- 0.18mm JGHF®: P1.0/400 ≤40 W/kg | ASTM A876
 *800V EV fast chargers (100kHz+)

SECTION 3: GLOBAL STANDARDS & CERTIFICATIONS

Region	Key Standards	Huaxiao Compliance
International	IEC 60404 (8-4, 8-7)	Full Epstein/single sheet test reports
North America	ASTM A876, A677	Certified per NEMA MW1000-C1
Europe	EN 10107, DIN EN 50341	PED/CE marked for transformers
Asia	JIS C 2553, GB/T 2521	CQC China, JQA Japan approvals
Certified for Siemens, ABB, Hitachi Energy designs

SECTION 4: HUAXIAO-ALLOY’S ELECTRICAL STEEL PORTFOLIO

NGOES for Rotating Machinery

Product	Thickness	Core Loss	Coating	Applications
M350-50A	0.50mm	≤5.3 W/kg (P<sub>1.5/50</sub>)	C5	Small motors, relays
50H800	0.50mm	≤4.3 W/kg	Z-coating	Industrial VFD motors
JNEH9000	0.30mm	≤20 W/kg (P<sub>1.0/400</sub>)	ND	IPM motors (EVs/drones)

GOES for Stationary Equipment

Product	Thickness	Core Loss	Technology	Applications
30P105 (CGO)	0.30mm	≤1.05 W/kg (P<sub>1.7/50</sub>)	Standard	Distribution transformers
23ZDKH85 (Hi-B)	0.23mm	≤0.80 W/kg	Laser-scribed	Ultra-efficient grid transformers
0.15mm HGO	0.15mm	≤35 W/kg (P<sub>1.0/400</sub>)	ZML coating	350kW+ EV chargers

SECTION 5: INDUSTRY-SPECIFIC SOLUTIONS

Sector	Challenge	Huaxiao Material + ROI
EV Manufacturing	High-speed motor losses	JNEH8000 0.30mm: ↓ core loss 30% → extend range 5.3%
Renewable Energy	Corrosive offshore environments	ZAM-coated NGOES: Salt spray resistance >1,200 hrs
Power Grids	Tier DZ efficiency mandates	Hi-B GOES: No-load loss reduction 25% → 1,900T CO<sub>2</sub> saved/transformer

WHY HUAXIAO-ALLOY?

✅ Mill-Direct Access: Partnerships with POSCO, NLMK, Baosteel
✅ Precision Processing: Slitting (±0.1mm), laser scribing, stress-relief annealing
✅ Global Logistics: FOB Shanghai / bonded EU/US stocks (Hamburg/Houston)
✅ Technical Support: Material selection optimization & testing validation

Case Study: 220kV transformer upgrade with 27ZDKH90 Hi-B steel ↓ no-load loss by 29%, achieving €48,000/year energy savings.

CONCLUSION: ENGINEERING TOMORROW’S ENERGY LANDSCAPE

Electrical steel remains the non-negotiable foundation of electrification – from smarter grids to zero-emission transport. Huaxiao-Alloy delivers the material science, certifications, and supply chain reliability to build it efficiently.

Power Your Innovation:
➤ Request Certified Samples (NGOES/GOES/Hi-B grades)
➤ Download Electrical Steel Selection Guide (85-page technical reference)
➤ Consult Engineers for ROI Analysis

[GET SAMPLE KIT] • [DOWNLOAD GUIDE] • [REQUEST QUOTE]

FAQs

01 - What’s the difference between CRGO and CRNGO?

A: CRGO (Grain-Oriented) has directionally optimized efficiency for transformers. CRNGO (Non-Oriented) offers uniform properties for motors/generators.

02 - Can electrical steel be reused/recycled?

A: Yes – electrical steel is 100% recyclable. Huaxiao offers ESG reports documenting >92% recycled content.

03 - Why choose laser-scribed GOES?

A: Reduces core losses 20–30% for critical grid infrastructure. ROI achieved in <3 years.

04 - Do you supply thin gauges (<0.20mm) for high-frequency use?

A: Yes – 0.15mm/0.18mm HGO in stock for EV charger (50–150 kHz) and aerospace applications.