View source for Rockwell hardness

== Description ==

A numerical measurement of the hardness of a material. The Rockwell hardness is determined by dropping a steel ball or diamond-tip cone of given diameter from a set distance on the test piece then measuring the size of the indentation. The resulting number is specified with a prefix that gives the load and type of indentor, i.e., HRC 30.

== Synonyms and Related Terms ==

Rockwell number; Rockwell Härte (Deut.); dureté Rockwell (Fr.);

==Resources and Citations==

* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 940

* Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988

* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993



[[Category:Materials database]]