ASTM E 18 - 08b Standard Test Methods for Rockwell Hardness of Metallic Materials

American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2008. Published January 2009. 37 p. These test methods cover the determination of the Rockwell hardness and the Rockwell superficial hardness of metallic materials by the Rockwell indentation hardness principle. This standard provides the requirements for Rockwell hardness machines and the procedures for performing Rockwell hardness tests.