I-alloy yensimbi yintsimbi eyabelwe ngeendlela ezahlukeneyo phakathi kwe-1,0% ne-50% ngokobunzima bokuphucula iipropathi zayo. I-alloy steels iqhekezwe ngokwamaqela amabini: amathafa asezantsi aphantsi kunye ne-subley ephezulu. Umahluko phakathi kwezi zimbini ziphikiswa. USmith noHashemi bachaza umahluko kwi-4.0%, ngelixa ihlargmo, i-el., Yichaze nge-8.0%. [1] [2] [2] [2] Eyona nto ixhaphakileyo, ibinzana elithi "i-alloy yentsimbi" libhekisa kwizitho eziphantsi.