What Is Oriented Silicon Steel And Non-oriented Silicon Steel?

Oriented silicon steel: Oriented silicon steel, also known as cold-rolled transformer steel, is an important ferrosilicon alloy used in the transformer (core) manufacturing industry.

Non-oriented silicon steel: Non-oriented silicon steel is a ferrosilicon alloy with very low carbon content, and its grains are distributed irregularly in the deformed and annealed steel plate.

Oriented silicon steel: The magnetism of oriented silicon steel has strong directionality, the lowest iron loss value, the highest magnetic permeability and high magnetic inductance value under a certain magnetization field in the rolling direction. Oriented silicon steel has a silicon content of about 3 percent and requires a low oxide inclusion content in the steel and must contain some kind of inhibitor (MnS, A1N).

Non-oriented silicon steel: non-oriented silicon steel contains 0.8 percent -4.8 percent silicon ferrosilicon alloy, which is hot and cold rolled into silicon steel sheet with a thickness of less than 1mm. The addition of silicon increases the resistivity and maximum permeability of iron, reducing coercivity, core loss (iron loss) and magnetic aging.

Non-oriented silicon steel: pre-desulfurization of molten iron, secondary desulfurization by adding Ca0 plus CaF: flux or rare earth elements and calcium during converter blowing. The boiling molten steel is decarburized by vacuum treatment and then further desulfurized. Ferrosilicon with low titanium and zirconium content is used for alloying.