Rockwell Indentation Hardness
Written by Administrator   
Monday, 29 October 2007

Rockwell Indentation Hardness. A technique for measuring the hard­ness of metals and alloys, in which a cone-shaped diamond is pressed to a standard depth into the metal, the relative resistance to penetration (Rockwell hardness) being deter­mined and automatically indicated by a number (Rockwell number) on a dial. The operation is called the Rockwell Test.