Iron aluminide is widely used in high-temperature structural applications due to its excellent oxidation and corrosion resistance, especially in environments containing sulfur and chlorine. It is employed in heat-treating fixtures, furnace components, and radiant tubes because it forms a protective alumina layer that prevents further degradation. Its low density and good mechanical properties at elevated temperatures make it suitable for automotive exhaust systems and turbocharger components. Additionally, iron aluminide is considered for use in power plant boilers and chemical processing equipment where resistance to sulfidation is critical. Ongoing research explores its potential as a coating material to protect steel substrates from extreme environmental damage.