Blog

Silicon steel, also called electrical steel, is a functional cold-rolled magnetic alloy dominated by iron and silicon, with trace aluminum, manganese and other alloying elements added.
It boasts three core advantages: low hysteresis loss, ultra-low core loss and superior magnetic permeability. Thanks to these unique electromagnetic traits, silicon steel is indispensable across power transmission, electronic manufacturing, new energy vehicles and multiple industrial sectors.

Its outstanding magnetic performance makes silicon steel the core material for nearly all electromagnetic equipment. The major application scenarios are listed below:

Silicon steel serves as the essential raw material for transformer iron cores. Transformers are pivotal voltage conversion equipment in power systems. Laminated silicon steel cores drastically cut core loss and copper loss, greatly lifting the overall energy efficiency of power transformers for UHV, industrial and residential power supply.

Motors and generators are the biggest consumption fields of electrical steel. Motors act as mainstream electric driving components, while generators convert mechanical energy into electricity. As core stator and rotor materials, silicon steel optimizes magnetic flux transmission, boosting motor and generator efficiency and operational stability.

In the automotive sector, silicon steel is applied to vehicle alternators and new energy traction motors. Vehicle alternators supply power to on-board electrical systems; EV drive motors rely heavily on high-frequency non-oriented silicon steel. Optimized silicon steel cores lower power waste and extend vehicle cruising range.

Silicon steel is also adopted in electric welders, industrial electromagnets, induction cookers and other electromagnetic devices. All these products demand balanced high permeability and low energy loss, which silicon steel can perfectly satisfy.

Silicon steel is mainly categorized by internal grain structure (magnetic performance), with secondary grouping by end-use scenarios.

CRNGO features uniform omnidirectional magnetic performance and stable permeability. It is the most versatile silicon steel grade, widely produced for rotating equipment including all types of motors, generators and small low-power transformers.

CRGO is manufactured via precise cold rolling and high-temperature annealing to form regular Goss grain texture. It delivers ultra-high unidirectional magnetic permeability and minimal hysteresis loss. This high-grade material is reserved for high-efficiency static transformers requiring strict low-loss standards.

This category mainly refers to grain-oriented silicon steel, prioritizing ultra-low core loss and high magnetic induction. It minimizes long-distance power transmission energy waste and improves the energy efficiency class of distribution and power grid transformers.

Made of non-oriented silicon steel, motor-grade electrical steel adapts to rotating alternating magnetic fields. It improves motor operating efficiency and reduces heat generation for household, industrial and EV drive motors.

Customized for wind power, hydroelectric and industrial generators, this silicon steel balances magnetic permeability and mechanical stability to enhance power generation efficiency and cut operational power consumption.

Silicon steel is a specialized cold-rolled functional alloy with unique electromagnetic characteristics, widely deployed in power infrastructure, electronics and automotive industries.
Split into grain-oriented and non-oriented grades by magnetic properties, and sorted into transformer, motor and generator steel by application, each type delivers distinct value for boosting equipment efficiency and cutting energy loss.
As energy transition and metallurgical technology advance, R&D and large-scale application of low-loss high-performance silicon steel will keep expanding, providing core material support for energy-saving and carbon-neutral development worldwide.