Intsimbi ye-alloy liqela le-alloy ebandakanya i-iron, i-carbon kunye nezinye izinto ezidibeneyo ezifana ne-Si, i-Mg, i-Cr, i-Mo, i-Ni, i-Mn, i-Cu, njl. njl. zingaphantsi okanye zilingana ne-5%), intsimbi yealloyi etyhidiweyo (izinto ezipheleleyo ze-alloy ziyi-5% ukuya kwi-10%) kunye nentsimbi ephezulu yealloy (izinto ezipheleleyo ze-alloy zingaphezulu okanye ilingana ne-10%). Ngokusekwe kwizicelo ezahlukeneyo kunye nesakhiwo, insimbi ye-alloy inokuphoswa ngeentlobo ezininzi zeenkqubo zokuphosa ezibandakanya utyalo-mali, ukuphosa isanti, ukuphosa igobolondo, ukuphosa amagwebu alahlekileyo kunye ne-vacuum casting. Ii-alloy steel castingsngokuqhelekileyo zineempawu ezizodwa zoomatshini ezifana nokumelana nobushushu, ukuxhathisa ukunxiba, ukuxhathisa i-stainless kunye ne-corrosion.