I-Allnel 718 Ibar yomjikelo yi-nickel-chromium ye-Alkemium-chromium ye-Alkelid ukuya kuthi ga kwi-55% i-nickel ekuqulunqweni kwayo. Iziqulatho zibandakanya i-17% ye-chromium, i-4.9% ye-Niobium, i-6.6% yentsimbi yentsimbi kunye ne-Iron, i-Bobalt, i-COPORE, i-Manganes, i-phosfur kunye ne-silicon. Isixhobo sinamandla anencasa ye-1375 ye-MPA kunye namandla esivuno esine-1100 MPA.