Insimbi engenasici i-alloy yensimbi engamelana nokugunda. Inama-chromium okungenani ayi-11% futhi ingaqukatha izinto ezifana nekhabhoni, ezinye izinsimbi nezinsimbi ukuthola ezinye izakhiwo ezifiselekayo. Ukuphikiswa kwensimbi engenasici emiphumeleni yokugqwala kusuka ku-chromium, eyakha ifilimu nje engavikela lokho okubonakalayo nokuzenzela ukuziphilisa phambi komoya-mpilo.
I-Alloy 904L iyinsimbi engazinzi eliqinile, eliphakeme le-auntenitic auntenitic elingenacala ngokuqukethwe okuphansi kwekhabhoni.