Chinese 
Cold Rolled Grain Oriented Silicon Steel (CRGO) Sheet
- Ordered grain structure delivers high magnetic permeability & drastically reduced core power loss.
- Two series (conventional / HiB laser etched) meet general efficiency and ultra-low energy loss demands.
- Precise fixed thickness tolerance, stable dimensional consistency for lamination stacking.
- Laser domain refinement technology lowers transformer running noise & no-load loss further.
- Complete international standard certification, compatible with global power equipment manufacturing norms.
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Product Overview
Cold Rolled Grain Oriented Silicon Steel (CRGO) Sheet is a soft magnetic alloy material specifically designed for transformer cores and other high-efficiency electrical equipment. Its grains are oriented along the rolling direction through controlled rolling and high-temperature annealing, providing high magnetic permeability and low iron loss.
The product is available in conventional grain oriented and HiB high-permeability series. Conventional grades are suitable for standard transformer and reactor cores, while HiB grades use laser magnetic domain refinement to further reduce no-load iron loss and operating noise.
Main thicknesses include 0.23 mm, 0.27 mm, 0.30 mm and 0.35 mm, with mother coil widths of 700–1200 mm. Longitudinal slitting can be provided according to customer lamination drawing requirements.
CRGO is widely used in distribution transformers, main power transformers, dry-type transformers, current and voltage transformers, photovoltaic and energy-storage equipment, wind power transformers, high-speed rail traction transformers and other electrical applications. Magnetic test reports and factory certification documents are available with finished coils.
Chemical & Mechanical Property Snapshot
Detailed Technical Specifications
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App Market
Reliable Steel Coil Solutions For Diverse Industrial Applications
Large power distribution transformers of the State Grid
Transformer Voltage Current Metering Transformer Reactor Core
Photovoltaic Inverter Energy Storage Transformer, Wind Power Box Transformer, High-speed rail Traction Transformer
1 Military special power supply Excitation core of medical nuclear magnetic equipment
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FAQs
Cold Rolled Grain Oriented Silicon Steel (CRGO) Sheet is mainly used for transformer cores and other electrical equipment requiring high magnetic permeability and low iron loss.
The main available thicknesses are 0.23 mm, 0.27 mm, 0.30 mm and 0.35 mm.
Conventional CRGO provides stable magnetic performance for standard applications, while HiB CRGO uses laser magnetic domain refinement to further reduce no-load iron loss and operating noise.
Yes. Longitudinal slitting is available according to customer lamination drawing requirements, allowing narrower widths to be produced from the mother coil.
Magnetic test reports and factory certification documents are available with finished coils.
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