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Determination of Sensitivity Coefficients for Rockwell Hardness Scales HR15N, HR30N, and HRA
Published
Author(s)
L Brice, Samuel Low, Rodney D. Jiggetts
Abstract
This report describes the work carried out to provide sensitivity coefficients for the Rockwell HRA and Superficial Rockwell HR15N and HR30N scales. Sensitivity coefficients were determined for the preliminary test force, total test force, force duration times, loading times, and loading rates. Work was carried out at both the National Physical Laboratory (NPL) in Teddington, UK and the National Institute of Standards and Technology (NIST) in Gaithersburg, USA.
Proceedings Title
IMEKO World Congress Metrology for a Sustainable Development | 18th | | IMEKO XVIII
Brice, L.
, Low, S.
and Jiggetts, R.
(2006),
Determination of Sensitivity Coefficients for Rockwell Hardness Scales HR15N, HR30N, and HRA, IMEKO World Congress Metrology for a Sustainable Development | 18th | | IMEKO XVIII, Rio de Janeiro, 1, BR
(Accessed October 12, 2025)