Oriented silicon steel is expensive. Grains of oriented silicon steel are oriented in a specific direction through processes such as hot rolling and cold rolling, so that the material has lower magnetic resistance and higher magnetic induction intensity, which is beneficial to reducing core loss and improving energy conversion efficiency. Since grain orientation needs to be controlled during the manufacturing process of oriented silicon steel, the process is complex and therefore relatively expensive. In non-oriented silicon steel, the grains are randomly arranged and have no orientation in a specific direction. The magnetic permeability and magnetic induction intensity of non-oriented silicon steel are slightly lower than that of oriented silicon steel. Its manufacturing process is relatively simple and the cost is low, so the price is relatively low. Silicon steel, also known as electrical steel or silicon steel sheet, is a special type of cold-rolled steel. It is made by adding silicon to ordinary mild steel.

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