Oriented silicon steel, also known as cold-rolled transformer steel, is an important ferrosilicon alloy used in transformer (core) manufacturing industry. The most widely used oriented silicon steel is supplied in the form of a coil, and its surface is coated with an insulating layer to generate tensile stress in the base steel strip, thus further reducing the iron loss value. The cold-rolled strip has a smooth surface, good punching performance and high core filling factor.

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