Non-Grain-Oriented Electrical Steel (CRNGO)
Yanshan Steel's Non-Oriented Electrical Steel (NGOES) is engineered for high-efficiency, high-speed rotating machines. Isotropic magnetic properties provide equal magnetic flux in all circular directions, making it ideal for electric vehicle traction stators/rotors, high-RPM servo motors, and inverter compressor cores.
Low Noise & Vibration
Magnetostriction <1.5 ppm in UHE series, significantly lowering acoustic hum in vehicle cabins.
High Fatigue Resistance
Smelted for >1,000,000 stress cycles at 400 MPa, withstanding rotor centrifugal loads >20,000 RPM.
Ultra-High Purity Smelting
Proprietary vacuum degassing process keeping total sulfur, nitrogen, and oxygen below 0.005%.
Custom Silicon Alloying
Silicon content customizable (2.5% – 3.5% Si) for target operational frequency optimization.
Yanshan Steel Non Grain Oriented Electrical Steel Manufacturer & Supplier
Yanshan Steel NGOES is distinguished by a proprietary high-purity vacuum degassing smelting process that reduces non-metallic inclusions, aluminum oxides, and sulfur content to less than 0.005%. This metallurgical cleanliness enhances both high-frequency magnetic permeability and high-cycle mechanical fatigue life, making our AH series capable of withstanding severe centrifugal stresses in electric vehicle rotors rotating upwards of 20,000 RPM.
Finished with rugged C5/C6 insulation coatings compliant with IEC 60404-8-2 and UL Class H standards, Yanshan Steel non-oriented silicon steel provides dielectric breakdown resistance of 600V/μm to 800V/μm while offering excellent punchability with low stamping die wear.
Technical Specifications Of Yanshan Steel's Non Grain Oriented Electrical Steel
Comprehensive comparison between Standard Grade, High Permeability (HP), and Ultra-High Efficiency (UHE) series.
| Parameter | Standard Grade | High Permeability (HP) | Ultra-High Efficiency (UHE) |
|---|---|---|---|
| Thickness Range | 0.35 – 0.65 mm (±0.02 mm) | 0.20 – 0.50 mm (±0.015 mm) | 0.10 – 0.30 mm (±0.01 mm) |
| Magnetic Induction (B50) | B50: 1.65 – 1.70 Tesla | B50: 1.72 – 1.75 Tesla | B50: 1.68 – 1.70 Tesla |
| Core Loss (P1.5/50) | ≤ 3.50 W/kg | ≤ 2.80 W/kg | ≤ 1.90 W/kg (Ultra-Low) |
| Yield Strength (YS) | 280 – 350 MPa | 320 – 400 MPa | 380 – 500 MPa (AH High Fatigue) |
| Surface Treatment | C4 Phosphate Coating | C5 Organic (UL Class H) | C6 High-Voltage Ceramic Coating |
| Governing Standards | ASTM A683, JIS C 2552 | IEC 60404-8-2, GB/T 2521.1 | EN 10106, IEC 60404-8-4 |
| Manufacturing Smelting | Cold-rolled + Batch Anneal | Cold-rolled + H₂ Pure Anneal | Cold-rolled + Double Anneal Pass |
CRNGO Production Grade Designations & Core Loss Matrix
Tested according to IEC 60404-8-4 and ASTM A677 standards at 50Hz and 400Hz high-frequency inverter excitation.
| Grade Designation | Nominal Gauge | Max Core Loss P1.5/50 | Max Core Loss P1.0/400 | Min Magnetic Induction (B50) | Typical Application |
|---|---|---|---|---|---|
| 35W230 / 35ZH230 | 0.35 mm | ≤ 2.30 W/kg | ≤ 18.0 W/kg | ≥ 1.66 T | High-RPM EV traction drive motors (>15,000 RPM) |
| 35W250 / 35ZH250 | 0.35 mm | ≤ 2.50 W/kg | ≤ 19.5 W/kg | ≥ 1.65 T | Premium servo motors & robotic precision actuators |
| 35W300 | 0.35 mm | ≤ 3.00 W/kg | ≤ 22.0 W/kg | ≥ 1.68 T | Inverter-driven HVAC heat pumps & industrial fans |
| 50W470 / 50ZH470 | 0.50 mm | ≤ 4.70 W/kg | — | ≥ 1.70 T | General industrial three-phase induction motors (IE3) |
| 50W600 | 0.50 mm | ≤ 6.00 W/kg | — | ≥ 1.72 T | Standard commercial appliance motors & micro-pumps |
| 50W800 | 0.50 mm | ≤ 8.00 W/kg | — | ≥ 1.74 T | Washing machine stators, power tools, alternators |
Coating of Non-Oriented Electrical Steel – Optimized for Industry Needs
Engineered coating systems providing interlaminar electrical isolation, punchability enhancement, and thermal endurance.
| Coating Designation | Key Properties & Dielectric Strength | Primary Applications |
|---|---|---|
| C-4 (Inorganic Phosphate) | 400 V/μm breakdown voltage, 150°C thermal stability | General-purpose industrial induction motors, small appliances |
| C-5 (Semi-Organic / Hybrid) | 600 V/μm breakdown voltage, 180°C (UL Class H rated), low tool wear | Automotive EV drive motors, high-frequency generators |
| C-6 (High-Voltage Ceramic) | 800 V/μm breakdown voltage, 220°C withstand, salt spray corrosion resistant | Offshore marine drives, aerospace micro-turbines, defense |
Precision Manufacturing Solutions
Full downstream manufacturing support from precision stamping to continuous decarburization annealing.
| Manufacturing Service | Technical Mill Capability | Guaranteed Tolerances |
|---|---|---|
| High-Speed Carbide Stamping | ≤20 μm burr height at 500+ SPM (multi-cavity progressive dies) | ±0.05 mm hole positioning accuracy |
| Insulation Coating Lines | 2 – 5 μm uniform coating thickness via robot-assisted precision roll-coat | ±0.3 μm film thickness uniformity |
| Narrow Slitting & De-cambering | 1 mm to 500 mm custom slit width with automatic edge deburring | Edge camber ≤0.02 mm/m |
| Decarburization Annealing | 1150°C high-temperature continuous line under H₂/N₂ atmosphere | Residual carbon content ≤0.003% |
Key Advantages & Applications of Yanshan Steel NGOES
Field-proven silicon steel grades engineered for automotive, heavy industry, and energy sectors.
| Industry Sector | Specific Industrial Application | Recommended Yanshan Steel Grade Fit |
|---|---|---|
| Automotive (EV & HEV) | EV traction drive motor stator/rotor cores (400Hz–1000Hz) | UHE Series (0.25mm, P1.5/50 ≤ 2.0 W/kg) |
| Industrial Automation | CNC machine high-precision spindle motors & servo drives | HP Series (0.50mm, B50 ≥ 1.72 Tesla) |
| Renewable Energy | Direct-drive permanent magnet wind turbine generators | AH Series (0.35mm, YS ≥ 450 MPa) |
| Consumer Appliances | Variable-frequency inverter air conditioning & heat pump compressors | Standard Grade (0.50mm / 0.65mm, C4 Coating) |
Our Delivery Standards and Supply Scope
VCI anti-corrosion barrier film + moisture-absorbing desiccants + heavy steel edge protectors compliant with ISO 16104 standards.
• In-stock materials: 5–7 days (Houston & Rotterdam hubs)
• Custom mill orders: 15–30 days based on alloy and coating
• Standard catalog grades: 2 metric tons
• Custom high-permeability alloys: 5 metric tons
Over 800+ metric tons of CRNGO stock distributed across USA, European Union, and Asia-Pacific regional warehouses.
Request Industrial Mill RFQ
Specify technical grades, dimensions, tolerances, and tonnage. Guaranteed engineering quote within 4 business hours.