I-Silicon steel, eyaziwa nangokuthi insimbi kagesi, iwuhlobo olukhethekile lwensimbi olwakhelwe ukukhombisa izici ezithile kazibuthe. Isetshenziswa kakhulu ekukhiqizeni ama-transformer, ama-motor kagesi, nezinye izinto zikagesi.
Ukwengezwa kwe-silicon ensimbi kusiza ekuthuthukiseni izici zayo zikagesi nezikazibuthe, okuyenza ibe into efanelekile yokusetshenziswa lapho ukulahlekelwa okuyinhloko okuphansi kanye nokufinyeleleka okuphezulu kuzibuthe kuyadingeka. Insimbi ye-silicon ngokuvamile ikhiqizwa ngendlela yamashidi amancanyana, ane-laminated noma amakhoyili ukuze kuncishiswe ukulahlekelwa kwamanje kwe-eddy futhi kuthuthukiswe ukusebenza kahle konke kwamadivayisi kagesi.
Lawa makhoyili angase abhekane nezinqubo ezithile zokudonsa kanye nokwelashwa kwendawo ukuze athuthukise izici zawo kazibuthe nokusebenza kukagesi. Ukwakheka nokucutshungulwa okunembile kwamakhoyili ensimbi ye-silicon kungahluka ngokusekelwe ekusetshenzisweni okuhlosiwe kanye nezidingo zokusebenza.
Amakhoyili ensimbi e-silicon adlala indima ebalulekile ekusebenzeni kahle nokuthembekile kwemishini ehlukahlukene kagesi futhi ayizingxenye ezibalulekile ekukhiqizeni, ekudluliselweni nasekusetshenzisweni kwamandla kagesi.