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Cold-rolled electrical steel is commonly known as silicon steel or silicon steel sheet. Is a very low carbon ferrosilicon soft magnetic alloy, the silicon content is generally 0.5 ~ 4.5%. The addition of silicon can improve the resistivity and maximum permeability of iron, reduce coercivity, core loss (iron loss) and magnetic aging. It is mainly used to make iron cores (stator and rotor) of various transformers, motors and generators.

Longsheng sheet electrical steel (without coating) has representative grades of 50LW1300, 50LW800, 50LW600 and 50LW470, and the execution standards are GB/T 2521-2008 cold rolling orientation and non-orientation electrical steel strip (sheet).