THE EFFECT OF SUGGESTED CHANGES TO THE ROCKWELL HARDNESS TEST METHOD |
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| S. R. Low, D. J. Pitchure, C. D. Flanigan |
- Abstract:
- In the latest revision of the ISO Rockwell hardness test standard (ISO/FDIS 6508(E), 1999), the introductory paragraphs introduce changes to the test practice; one new to this revision, and one suggested as a possibility for the next revision. The change to the new revision is the addition of allowing the use of hardmetal or tungsten-carbide balls for all Rockwell scales that use ball indenters. The change suggested for the next revision is to redefine the standard test forces presently based on rounded kilogram-force values, to converted and rounded Newton values. Since the development of the test method over 80 years ago, an incalculable amount of Rockwell hardness measurements have been made following essentially the same procedures. This paper discusses how these new changes could effect the Rockwell hardness measurement results.
- Keywords:
- hardmetal ball, indenter, Rockwell hardness
- Download:
- IMEKO-WC-2000-TC5-P170.pdf
- DOI:
- -
- Event details
- Event name:
- XVI IMEKO World Congress
- Title:
Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future
- Place:
- Vienna, AUSTRIA
- Time:
- 25 September 2000 - 28 September 2000