Grain-oriented steel produced in such a way that the optimum properties are developed in the rolling direction, by precisely controlling the crystal orientation relative to the sheet direction. The magnetic flux density is increased by 30% in the coil rolling direction, although its magnetic saturation is decreased by 5%. It is used for power and distribution transformer cores, which is an integral part of any transformer. It is also used for certain audio output transformers.
Non-Oriented is more conventional, pricewise, compared to Grain-Oriented steel, and is used when cost is given a higher priority than efficiency. It is used for applications where direction of magnetic flux is not constant, as in electric motors and generators with moving parts.