PIston (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL’s Dean Pierce collaborated with Cummins to develop and create pistons from 3Cr-XHTS steel, a high-strength, medium-carbon steel alloy. Credit ORNL, U.S. Dept. of Energy Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.