Non-Oriented Electrical Steel Coil (GNO)
Silicon steel with controlled core loss for motors, generators, compressors and transformers.
Key facts
| Grades and materials we supply | 50W470 / 50W600 / 50W800 / 50W1300, B50A470 – B50A1300, 50CS1300, 50WW600 |
|---|---|
| Size range | Thickness 0.35 / 0.50 / 0.65 mm · width 600 – 1250 mm · slit from 30 mm |
| Core loss | P1.5/50 from 3.00 to 13.00 W/kg depending on grade |
| Coating | C5 / C6 semi-organic insulating coating, weldable |
| Standard | EN 10106, IEC 60404-8-4, JIS C2552, GB/T 2521.1 |
Grades we hold specifications for
50W470 Non-Oriented Electrical Steel CoilFully processed non-oriented electrical steel, 0.50 mm, GB/T 2521.150W600 Non-Oriented Electrical Steel Coil (GNO)Fully processed non-oriented electrical steel, 0.50 mm, GB/T 2521.1
Technical specifications
Non-oriented electrical steel is graded by core loss: the lower the watts lost per kilogram at 1.5 T and 50 Hz, the more efficient the motor and the more it costs per tonne. We quote the grade band that matches your design — 50W470 to 50W1300 in 0.50 mm, or 0.35 mm for high-speed machines — with the magnetic properties certified per coil.
Main applications
- Induction and universal motors
- Generators and alternators
- Compressors and pumps
- Distribution transformers
- Electric vehicle traction motors
Packing and delivery
Eye to sky on wooden pallets, wrapped in waterproof paper, with a mill test certificate stating core loss, induction and coating thickness for each coil.
Standards
FAQ
How do I choose between 0.35 mm and 0.50 mm?
0.35 mm reduces eddy-current loss and is used where efficiency or rotational speed matters; 0.50 mm is the standard choice where cost per tonne dominates. Send your lamination size and frequency and we will quote both.
Is the coating suitable for welding or for annealing?
We supply C5 and C6 semi-organic coatings for welded cores. If your process requires annealing after punching, tell us — the coating chemistry has to be specified for that, and not every mill can do it.