The latest popular silicon steel sheet models in China mainly include cold-rolled non-oriented silicon steel (e.g., DW270-35, DW310-35), high-efficiency non-oriented silicon steel (e.g., DWEG350-35), and cold-rolled oriented silicon steel (e.g., 27QH090, 23QH085). The specific models and performance characteristics are as follows:
Cold-Rolled Non-Oriented Silicon Steel
General Grades: DW470-50 (thickness 0.50mm, core loss ≤4.70 W/kg), DW540-50, DW600-50 (core loss increases sequentially)
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High-Efficiency Grades: DW270-35 (thickness 0.35mm, core loss ≤2.70 W/kg), DW310-35 (core loss ≤3.10 W/kg)
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New Energy Vehicle-Specific: DWEG350-35 (lower core loss, optimized for motors)
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Cold-Rolled Oriented Silicon Steel
Standard Oriented: 30Q130 (thickness 0.30mm, core loss ≤1.30 W/kg), 27QG110 (high magnetic induction, core loss ≤1.10 W/kg)
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High Magnetic Induction (Hi-B): 27QH090 (core loss ≤0.90 W/kg), 23QH085 (thinner, superior performance)
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New High-End Models (2025)
Baosteel B10AHV900M: Thickness 0.1mm, core loss P10/400 <9 W/kg, magnetic induction 1.66T, for drone motors
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B50AM250: Supports IE6 ultra-premium efficiency motors, 3% more efficient than IE5
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65WY600: Designed for pumped-storage motors, withstands extreme conditions
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Market-Circulating Models (November 2025)
Non-Oriented: 50WW470, 50WW600, 50WW800 (thickness 0.5mm, widely used in transformers and motors).
Adhesive Silicon Steel: 35QG135 (for motor cores).
Ultra-Thin Oriented: 23QH085 (thickness 0.23mm).