diamond-pyramid hardness number

diamond-pyramid hardness number

[¦dī·mənd ¦pir·ə·mid ′härd·nəs ‚nəm·bər]
(metallurgy)
The quotient of the load applied in the diamond-pyramid hardness test divided by the pyramidal area of the impression.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.