Nickel Alloy 718 is a high-strength, corrosion-resistant nickel-chromium alloy that contains significant amounts of iron, niobium, molybdenum, and trace amounts of other elements. It is also known as Inconel 718 or UNS N07718.Nickel Alloy 718 is known for its excellent fatigue resistance and high strength, even at high temperatures. It is also known for its ability to resist stress corrosion cracking, pitting, and crevice corrosion in aggressive environments.