To require certain Federal agencies to use iron and steel produced in the United States in carrying out projects for the construction, alteration, or repair of a public building or public work, and for other purposes.

American Steel First Act of 2011 - Prohibits heads of the Department of Homeland Security (DHS), the Department of Defense (DOD), and the Department of Transportation (DOT) from obligating or expending funds or providing financial assistance for projects for the construction, alteration, maintenance, or repair of a public building or public work unless all of the iron and steel used in such...