Alton Steel Inc., established in 2003, is a Special Bar Quality (SBQ) steel mill producing rounds, round-cornered squares, an ... d bar-in-coil in the heartland of America. Through continued investment for a promising future, Alton Steel offers products at a competitive price with a dedicated focus on great customer service. Alton's current production includes a full range of carbon and alloy grades. Flexible and frequent rolling offers quick response and better inventory control to our customers. read more