The difference between oriented silicon steel and non-oriented silicon steel

- Jul 08, 2019-

1, different nature

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

Non-oriented silicon steel: Non-oriented silicon steel is a low-carbon ferrosilicon alloy, and its grains are randomly oriented in the deformed and annealed steel sheets.

2, different characteristics

Oriented silicon steel: The (110) plane of the crystal is parallel to the plane of the steel strip, and the easily magnetized < 001> axis is parallel to the rolling direction. Oriented silicon steel has a silicon content of about 3% and requires a low oxide inclusion content in the steel and must contain some inhibitor (MnS, A1N). The magnetic properties of oriented silicon steel have strong directionality, the lowest iron loss value in the rolling direction, the highest magnetic permeability and a high magnetic induction value under a certain magnetization field.

Non-oriented silicon steel: a ferrosilicon alloy with a very low carbon content. The grains in the deformed and annealed steel sheets are randomly oriented. The alloy has a silicon content of 1.5% to 3.0%, or a sum of silicon to aluminum content of 1.8% to 4.0%.

3, different uses

Oriented silicon steel: The most important use of cold rolled oriented silicon steel strip is for transformer manufacturing, so it is also called cold rolled transformer silicon steel.

Non-oriented silicon steel: The most important use of cold-rolled non-oriented silicon steel sheet is for generator manufacturing, so it is also called cold-rolled motor silicon steel.

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