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Silicon Steel

Silicon Steel

  • Silicon Steel

OVERVIEW OF Silicon Steel 

Silicon steel, also known as electrical steel, lamination steel, or transformer steel, is a ferritic alloy of iron and silicon that have magnetic properties, which make it useful in motors and transformers. This type of steel material contains 0.5%-4.5% silicon in weight with low carbon of less than 0.08%. The addition of silicon (Si) improves the magnetic softness and increases the electrical resistivity of steel. There are two forms of silicon steel: grain-oriented (GO) and non-oriented (NGO). GO silicon steel can be further subdivided into regular grain-oriented (RGO) and high permeability grain-oriented (HGO) materials. Silicon steel is known for its high permeability and low amounts of core loss, which make it useful in the generation, distribution, and consumption of electricity, such as small to large motors, relays, solenoids, appliances’ motors, wind turbines, cores of transformers, EV, and power generator equipment, etc.



Features of Silicon Steel

  • 1

    Thanks to the high permeability, low coercivity, and high resistivity of silicon steel, the hysteresis loss and eddy current loss are small.


  • 2

    Silicon steel requires high plasticity, smooth and flat surface, and low harmful inclusion in order to satisfy the process of punching and shearing, improve magnetic induction, and reduce hysteresis loss.


  • 3

    At present, the production process of hot-rolled silicon steel has been eliminated in China and replaced with cold-rolled silicon steel. The iron loss performance of the silicon steel that CUMIC supply far exceeds the iron loss requirements of the international standards.


PARAMETER OF SILICON STEEL

Standard

GB/T 2521-2008

Grades

50W800, 50W600, 50W470, 65W800

27Q120, 27Q110, 23Q100, 23Q90, 23Q80

Coating

Organic coating

Semi organic coating

Inorganic coating

Self-bonding coating

Sizes

NGO 0.2-0.65 mm, Iron loss: 2.1--13.0w/kg;

GO 0.15-0.35 mm, Iron loss: 0.58--1.3 w/kg


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