The composition of Silicon-Iron alloys primarily includes iron and silicon. The silicon content generally ranges from 1% to 6.5%. The purpose of silicon is manifold. It not only improves the alloy's magnetic properties but also reduces the material's hysteresis loss – the energy loss due to the reversal of magnetization. There are two primary types of silicon steels: Grain-Oriented (GO) and Non-Grain Oriented (NGO) silicon steels.
Grain-Oriented Silicon Steel: This type of silicon steel is produced in a manner that aligns the orientation of the grain along the rolling direction. The intention behind such a structure is to maximize the magnetic properties in that particular direction.
Non-Grain Oriented Silicon Steel: Contrary to GO, the NGO silicon steel doesn't have any specific grain orientation, thereby exhibiting uniform magnetic properties in all directions.
