Silicon simbi ine 1.0-4.5% silicon uye silicon alloy simbi ine kabhoni inodzika isingasviki 0.08% inonzi silicon simbi.
Iyo ine hunhu hwepamusoro magineti permeability, yakaderera coercivity, uye yakakura resistivity, saka hysteresis kurasikirwa uye eddy ikozvino kurasikirwa idiki.
Inonyanya kushandiswa semagineti zvinhu mumamotor, transformers, midziyo yemagetsi uye zviridzwa zvemagetsi.