Rockwell number

Isaac Kremer/ September 9, 2018/ / 0 comments

A measure of the hardness of a material determined by indenting a test piece with a conoidal diamond indenter, or with a standard steel ball, under two successive loads and measuring the net increase in depth of the impressions: the higher the number, the harder the material. (Ching, 1995)

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About Isaac Kremer

A nationally recognized downtown revitalization leader, downtowns Isaac managed achieved $350 million of investment, 1,300 jobs created, and were 2X Great American Main Street Award Semifinalist and a 1X GAMSA winner in 2023. His work has been featured in Newsday, NJBIZ, ROI-NJ, TapInto, and USA Today. Isaac is a Main Street America Revitalization Professional (MSARP) with additional certifications from the National Parks Service, Project for Public Spaces, and the National Development Council.

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