What are the uses of silicon steel？

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2026년 8월 8일 블로그

Also known as electrical steel, silicon steel acts as the core magnetic material for all electromagnetic devices. Its unique grain structure controls magnetic flux and drastically cuts energy loss, just as semiconductors power computers. Split into CRGO (cold rolled grain-oriented silicon steel) and CRNGO (cold rolled non-oriented silicon steel), it serves three major industrial sectors: traditional power infrastructure, new energy equipment, and high-end precision instruments.

1. Core Material for All Power Equipment

Silicon steel is the foundational component of transformers and motors, delivering ultra-low energy consumption via optimized grain alignment.

Power Grid Transformers

Stacked 0.3mm CRGO silicon steel sheets form transformer iron cores, cutting eddy current loss by over 60%. High-grade Hi-B oriented silicon steel is standard for UHV grid transformers to reduce long-distance transmission waste.
Industrial Drive Motors

Motors equipped with grain-oriented silicon steel gain a 5%–8% efficiency boost, lowering factory power consumption and operational costs.
Household Appliance Compressors & Motors

CRNGO silicon steel inside air conditioner, refrigerator and washing machine compressors easily lifts appliances to top energy efficiency ratings, meeting global energy-saving standards.

2. Hidden Core Material Powering the New Energy Industry

Global energy transition has driven explosive demand for high-performance silicon steel, with wind power and electric vehicles as the largest consumption markets.

Wind Turbine Generators

A single 3MW wind generator consumes roughly 20 tons of high-grade silicon steel. Its stable magnetic properties withstand strong alternating magnetic fields and harsh outdoor operating conditions.
EV Drive Motors

Every electric vehicle traction motor uses 50–100kg high-frequency CRNGO silicon steel. The material’s magnetic permeability directly determines motor efficiency and vehicle cruising range; ultra-thin 0.15–0.2mm grades are widely adopted for high-speed EV motors.
EV Charging Station Transformers

High-power fast charging transformers rely on silicon steel’s strong instantaneous magnetic flux bearing capacity to support rapid, stable energy conversion during high-current charging.

3. High-Precision Magnetic Material for Advanced Scientific Instruments

Ultra-thin, high-purity silicon steel enables cutting-edge precision equipment that requires strict magnetic control.

Medical Magnetic Shielding Rooms

0.1mm ultra-thin silicon steel sheets build electromagnetic shielding enclosures, blocking external magnetic interference and ensuring accurate signal output for MRI and other diagnostic medical devices.
Particle Accelerators

Ultra-high-purity silicon steel precisely guides particle beams, with beam path deviation controlled to 1/10,000 of a human hair’s diameter for high-precision physics experiments.
Aerospace Electromagnetic Relays

Silicon steel retains consistent magnetic performance under extreme vacuum and temperature fluctuations in outer space, guaranteeing stable, reliable operation of satellite and spacecraft electrical systems.

Closing Summary

From large-scale power grid transformers and wind turbines to EV drive motors and aerospace precision parts, silicon steel is an irreplaceable functional magnetic material. CRGO dominates static transformer equipment, while CRNGO serves all rotating motors. As global carbon neutrality targets advance, ultra-low-loss, high-magnetic-induction silicon steel will become the standard material for next-generation high-efficiency power and new energy hardware.

태그: 실리콘강