Cold rolled non grain oriented steel is often abbreviated to CRNGO. It usually has a silicon level of 2 to 3.5% and has similar magnetic properties in all directions, i.e., it is isotropic. Mainly used in rotating equipment, for example, electric motors, generators and over frequency and high-frequency converters.
Grain oriented electrical steel is an important material in the production of energy efficient transformers and large, high performance generators. In the form of laminated, wound or punched sheets, it is the essential core material of distribution transformers, power transformers and small transformers.