A soft magnetic materials used widely, the alloy has Si mixed 3-4% it has several advantages as follows.
1.) Si will help to make the steel with low carbon content has more resistance to energy loss due to eddy current decrease.
2.) Si will reduce energy magnetoanisotropy of steel will increase the magnetic permeability which caused energy loss lose less.
3.) Si will help reduce the magnetostriction and make hysteresis energy losses down. Also makes noise caused by transformer. Decrease, however, there is Si will make the steel toughness decreased and will make the saturation induction and temperature. Curie decreased