Allegheny Technologies Inc. announced the completion of its acquisition of Ladish Co., pursuant to the terms of an agreement and merger plan adopted by Ladish shareholders on May 6, 2011. "We are pleased to have completed our acquisition of Ladish and welcome the highly experienced group of Ladish employees to ATI," said Richard J. Harshman, chairman, president and CEO of ATI. ATI Ladish is now an operating company of ATI’s High Performance Metals segment, which also includes ATI Allvac and ATI Wah Chang.