Grain Oriented Electrical Steels
Cogent Power Unisil products offer a wide choice of Grain Oriented electrical steels. All manufactured to the highest quality standards.
Unisil is conventional grain oriented material between 0.23mm and 0.35mm thick and Unisil-H is high-permeability grain-oriented steel at a maximum thickness of 0.30mm. The product range also includes laser scribed products, which offer improved loss performance over traditional Unisil-H, through a sophisticated process of domain refinement.
Grain Oriented electrical steel is an essential material in the manufacture of energy-efficient transformers and large, high-performance generators. Its unrivalled magnetic properties are a result of its unique grain structure, which is formed through a complex production process starting from high-silicon hot-rolled coil feedstock.
During the secondary recrystalisation process some grains grow to over 30mm in length, whereas mild steels require a microscope to view the grain structure. The orientation of the enhanced grain structure provides significantly better magnetic properties in the rolling direction of the sheet.