Alloys including iron, nickel, manganese, aluminum and chromium are disclosed. The alloys have high strength and ductility. The alloys are prepared from readily available transition metals, and can be used in applications where properties similar to steel are necessary or advantageous.
 The United States Government has rights in this invention under Contract No. NSF-DMR-0505774 and NSF DMR-0905229 between the National Science Foundation (NSF) and Dartmouth College and also under Contract DE-FG02-07ER46392, between the U.S. Department of Energy and Dartmouth College.