Idume ngokugqwesa kwishishini leoli negesi, iAPI 5L Umbhobho Steel engenamthungoime njengeparagon yokuqina kunye nokusebenza. Ngamabakala ahlukeneyo aquka i-Gr.B, X42, X52, X60, X65, kunye ne-X70, iyahlangabezana neemfuno ezingqongqo zokuthutha ulwelo kunye neegesi phantsi koxinzelelo oluphezulu kunye neemeko ezigqithisileyo. Uyilo lwayo olungenamthungo luqinisekisa ukuthembeka kolwakhiwo, ngelixa uluhlu olwahlukeneyo lwamabanga lubonelela ngezisombululo ezilungiselelwe izicelo ezahlukeneyo. Ukusuka ekugrumbeni kude nonxweme ukuya kulwakhiwo lwemibhobho, iAPI 5LUmbhobho wentsimbi ongenamthungo uhlala uyi-asethi eyimfuneko, eqinisekisa ukuhamba okukhuselekileyo nokusebenzayo kwemithombo kwihlabathi jikelele.