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Help CenterSilicon Steel & Electrical Steel，50WW470、50WW600、50WW800、35WW300、30Q120、27Q110、23Q090
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1. Product Introduction
Electrical Steel is low-carbon ferrosilicon soft magnetic alloy, the essential raw material for all kinds of electrical equipment. Two mainstream products are Transformer Steel Sheet and Motor Lamination Steel. We steadily supply Electrical Steel coils, flattened sheets and precision slit narrow strips. Premium Electrical Steel owns low core loss and high magnetic permeability. Transformer Steel Sheet features directional magnetic property, mainly applied in transformer manufacturing. Motor Lamination Steel has uniform magnetic property in all directions, widely used for motor and generator core production. Power infrastructure projects and electrical manufacturers in Africa keep purchasing Electrical Steel. Power transmission projects prefer Transformer Steel Sheet, while motor factories maintain regular stock of Motor Lamination Steel.
2. Product Classification
Transformer Steel Sheet (Transformer Grade Electrical Steel)Grains arrange orderly along rolling direction, extremely low core loss and high magnetic induction. It is the preferred Electrical Steel for distribution transformers and power transformers, including standard grade and high permeability grade Transformer Steel Sheet. This Transformer Steel Sheet is covered with insulating coating and delivers stable stamping performance. Numerous power transmission projects globally adopt Transformer Steel Sheet for iron core production. Available thickness: 0.18mm, 0.23mm, 0.27mm, 0.30mm, 0.35mm Typical grades: 30Q120, 27Q110, 23Q090
Motor Lamination Steel (Motor Grade Electrical Steel)Random grain structure with balanced multi-directional magnetic performance, suitable for rotating electrical equipment. It is the highest-volume functional Electrical Steel in market. Motor Lamination Steel is widely processed into motor stator and rotor cores. Household appliances, industrial fans and generators consume massive Motor Lamination Steel. Available thickness: 0.35mm, 0.50mm, 0.65mm Typical grades: 50WW470, 50WW600, 50WW800, 35WW300
All Electrical Steel adopts cold rolling technology, outdated hot rolled products are phased out. Transformer Steel Sheet and Motor Lamination Steel can be supplied as coils, flat sheets and slit strips.
3. Implementation Standards
GB/T 2521; IEC 60404, ASTM A665, JIS C2552 All Transformer Steel Sheet, Motor Lamination Steel and Electrical Steel are manufactured strictly under international electrical standards with stable electromagnetic parameters and available for third-party inspection.
4. Standard Dimensions
Thickness RangeTransformer Steel Sheet: 0.18 ~ 0.35 mmMotor Lamination Steel: 0.35 ~ 0.65 mm
Coil Width: 750mm–1250mm, customized slitting service available
Inner Coil Diameter: 508mm
Flat Sheet Size: standard 1000×2000mm, 1250×2500mm, customized length acceptable
Tolerance: national standard for thickness & width; tighter tolerance negotiable for high-precision orders Full range Electrical Steel in stock. Sufficient inventory of Motor Lamination Steel. Mixed container service for all sizes of Transformer Steel Sheet.
5. Surface Insulation Coating Options
C3 coating: general insulating coating, standard configuration for regular stock Electrical Steel, suitable for normal stamping
C5 coating: heat resistant insulation coating, widely used for high-end Transformer Steel Sheet requiring annealing treatment
Self-bonding coating: no extra insulation required, ideal for mass production of small iron cores Coating of all Transformer Steel Sheet and Motor Lamination Steel features strong adhesion to prevent inter-laminar short circuit.
6. Main Electromagnetic Characteristics
Transformer Steel SheetLow specific core loss and high magnetic induction, effectively reducing transformer no-load loss with prominent energy-saving effect. It is the top-choice Electrical Steel for static electromagnetic equipment.
Motor Lamination SteelIsotropic magnetic property, low noise and stable loss under high-speed operation. Large-scale motor manufacturing prioritizes this type of Electrical Steel.
7. Applications
Applications of Transformer Steel SheetDistribution transformers, power transformers, rectifier transformers, reactor cores. Power grid upgrading projects in Djibouti place bulk orders for Transformer Steel Sheet. It is the core Electrical Steel raw material for power transmission industry.
Applications of Motor Lamination SteelIndustrial motors, generators, water pump motors, air conditioner compressors, servo motor stator & rotor cores. Electrical component manufacturers continuously purchase Motor Lamination Steel.
General usage: instrument transformers, relays and small electromagnetic components, all require high-quality Electrical Steel.
8. Seaworthy Export Packing
Steel coils wrapped by anti-rust paper + double-layer moisture-proof plastic film, fastened with steel strips.
Coils fixed on fumigated wooden pallets to avoid collision and deformation during sea transport. Each coil label clearly marks Electrical Steel, distinguish Transformer Steel Sheet or Motor Lamination Steel, grade, dimension and weight.
Extra rainproof reinforcement to adapt high-humidity marine environment, protect coating of Electrical Steel from damage and rust.
Custom shipping mark available as buyer’s request.
Suitable for direct container shipment to Djibouti. Mixed loading of large quantity Transformer Steel Sheet and Motor Lamination Steel is acceptable.
9. Trade Terms
MOQ: 3 Metric Tons; competitive price for bulk Electrical Steel order
Trade Term: CIF EXW FOB
Lead Time: 12–22 days. We arrange shipment of Transformer Steel Sheet and Motor Lamination Steel promptly.
Loading Port: Qingdao Port / Tianjin Port
Documents: Commercial Invoice, Packing List, Bill of Lading, Original Electromagnetic Mill Test Certificate, Certificate of Origin, commodity name marked as Electrical Steel with sub-category remark.
Inspection: Full inspection before delivery; SGS third-party electromagnetic test acceptable (cost negotiable). Formal complete test reports can be provided for all Transformer Steel Sheet and Motor Lamination Steel.
10. Extra Processing Service
Coil flattening, precision slitting and deburring available. Mixed container loading for different grades of Electrical Steel. Transformer Steel Sheet and Motor Lamination Steel can be loaded into one container.
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