Nimonic 90Nimonic 90 is a super alloy of nickel-chromium-cobalt, known for both its strength and its ability to withstand extremely high temperatures. Typically used in temperatures ranging from 100 degrees Celsius to +650 degrees Celsius, Nimonic 90 is a popular alloy in the aerospace and aircraft industries. It is widely used in such applications as valves in turbo motors and blades and discs in gas turbines.