Ghangel 718 Barch Bar bụ Nickel-Chromium Alloy Sord na ruru 55% nickel na nchịkọta ya. Ihe ndị dị n'ime 2%, 4.9% niobium, 6.6% iron, boron, carbon, carnal, na-eduga, sọlfọ na Silicon. Ihe a nwere ikike tensile nke 1375 MPA na otu opekempe na-abata ike nke 1100 MPA.