Characteristic

Iron aluminides are intermetallic compounds of iron and aluminium - they typically contain ~18% Al or more.

Good oxide and sulfur resistance, with strength comparable to steel alloys, and low cost of materials have made these compounds of metallurgical interest - however low ductility and issues with hydrogen embrittlement are barriers to their processing and use in structural applications.

Chemical formula：Fe₃Al

Molar mass:194.52 g/mol

Appearance：Gray Powder, Intermetallic

Density：6.72 g/cm³

Melting point:1540 °C

Application

Substitute for stainless steel with better high temperature strength. Good corrosion resistance in sulfidizing environments.

Potential uses for iron alumides include : electrical heating elements, piping and other work for high temperature process including piping for coal gasification and for superheater and re-heater tubes. It has also been suggested as a structural material for lunar use.