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The properties of cold-rolled electrical steel and its basic classification
Jun 26, 2018

The so-called cold-rolled electrical steel is actually a silicon steel sheet for electrical use. It is an electrical silicon steel containing up to 0.8% to 4.8% silicon and cold rolled. The general thickness is below 1mm. Tests have shown that this cold-rolled electrical steel has excellent electromagnetic properties and is an indispensable and important magnetic material in the power, telecommunications and instrumentation industries.


Cold rolled electrical steel can be divided into low silicon and high silicon according to different silicon content. Low silicon silicon contains 2.8% or less of silicon. It has certain mechanical strength and is mainly used for manufacturing motors. High silicon silicon content is 2.8%-4.8%, it has good magnetic properties, but it is relatively brittle. It is mainly used for manufacturing transformer cores.


Corresponding to the cold-rolled electrical steel is a hot-rolled electrical steel, the production and processing of the two different, cold-rolled electrical steel can be divided into two kinds of grain non-orientation and grain orientation, the product showed uniform thickness, good surface quality, magnetic With higher advantages, there has been a trend to replace hot-rolled silicon steel with industrial development.


In measuring the quality of cold-rolled electrical steel, an important indicator is iron loss. The lower the iron loss, the higher the grade and the higher the quality. The second is the cold-rolled electrician who can obtain high magnetic induction under the same magnetic field. Steel, with its small size and weight, can save silicon steel, copper wire, and insulating materials.

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