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Unformatted text preview: then applied. The indentation (d) by the major load is then measured. Rockwell B Rockwell C Indenter 1/16 in. diam Diamond steel ball Cone Major Load 100kg 150kg Rockwell B number= 130 - (d / 2μm) Rockwell C number= 100 - (d / 2μm) Rockwell testers are usually calibrated to give the Rockwell numbers directly. *Results of hardness tests can be used to estimate the ultimate strength of metals....
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- Fall '10
- Tensile strength, Rockwell scale, Vickers hardness test, Hardness comparison, Indentation hardness