Rockwell hardness [′räk‚wel ′härd·nəs]
A measure of the resistance of a material to indentation; determined by use of a machine which presses a steel ball or a spheroconical ball indentor into the material under arbitrarily fixed test conditions; expressed by the Rockwell hardness number—the higher the number, the harder the material.
(engineering)
A measure of hardness of a material as determined by the Rockwell hardness test.
Rockwell hardness
Rockwell hardness tester
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