Inconel vs. Monel — What's the Difference?

Inconel is a registered trademark of Special Metals Corporation for a family of austenitic nickel-chromium-based superalloys.Inconel alloys are oxidation-corrosion-resistant materials well suited for service in extreme environments subjected to pressure and heat. When heated, Inconel forms a thick, stable, passivating oxide layer protecting the surface from further attack.

Monel is a group of nickel alloys, primarily composed of nickel (from 52 to 67%) and copper, with small amounts of iron, manganese, carbon, and silicon. (Alloys with copper contents 60% or more are called cupronickel.) Stronger than pure nickel, Monel alloys are resistant to corrosion by many agents, including rapidly flowing seawater.

Any of a family of corrosion- and oxidation-resistant nickel-chromium superalloys that retain strength at high temperatures.

A nickel-base alloy with chromium and iron; used in gas-turbine blades