Electrical steels

Electrical steel is a unique steel product which utilizes the ferromagnetic properties of iron. Electrical steels are the most-used (over 90% by volume) materials among all soft magnetic materials. 

Electrical steel is also referred to as silicon steel, as Si is the main additive element. The addition of silicon improves the soft magnetic properties of The addition of silicon improves the soft magnetic properties of steel. Therefore, the addition of silicon to iron containing impurities in general increases the magnetic permeability, reduces the coercivity and iron loss. However, the increase in silicon content will make the material hard and brittle, thermal conductivity and toughness decline, and is not conducive to heat dissipation and mechanical processing, so the general silicon steel sheet silicon content does not exceed 4.5%.

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