ArcelorMittal has announced plans to increase its output of quenched and tempered plate across its U.S. plate mills in order to meet high military and commercial demand. The company said its investments will focus on updating equipment and material-handling facilities at all of its U.S. plate mills – Coatesville and Conshohocken, Pa., and Burns Harbor and Gary, Ind. The upgrades will be completed in phases during 2008 without disruptions to existing operations.

With the investments, ArcelorMittal is targeting a 50,000-ton increase in its output of high-quality quench and tempered product. ArcelorMittal USA is the largest steel producer in North America and the largest integrated steel producer in the U.S.