I-Super Duplex yakhiwa ngo-24% kuya ku-26% Chromium, 6% kuya ku-8% nickel, 3% molybdenum kanye ne-1.2% manganese, okusele kube yinsimbi. Landelela amanani ekhabhoni, i-phosphorus, isibabule, i-silicon, i-nitrogen, ne-zethusi nawo atholakala ku-super duplex.