Rockwell hardness


Also found in: Dictionary, Thesaurus, Medical, Financial.

Rockwell hardness

[′räk‚wel ′härd·nəs]
(engineering)
A measure of hardness of a material as determined by the Rockwell hardness test.

Rockwell hardness

Rockwell hardness tester
A measure of the resistance of a material to indentation; determined by use of a machine which presses a steel ball or a spheroconical ball indentor into the material under arbitrarily fixed test conditions; expressed by the Rockwell hardness number—the higher the number, the harder the material.
References in periodicals archive ?
Rockwell Hardness Tester was used for 6 min at 650W to check the hardness of heat cure and self-cure acrylic resin before and after disinfection with microwave.
With a Rockwell hardness of 56 to 58 degrees, these knives have a double-sided blade that won't need to be sharpened until after the first six months of use.
4 show impact strength and Rockwell hardness of PA6/ABS and PA6/MABS blends, respectively.
Tenders Are Invited For Calibration Of Rockwell Hardness Testers
Rockwell hardness test or the macro hardness was performed on the specimens which were prepared by using belt grinder.
115" thick), it's heat-treated to a Rockwell hardness of 58-60, which should really hold an edge.
com)-- New HR-200/300/400/500 Series Rockwell hardness testing machines from Mitutoyo America Corporation offer enhanced performance with improved frames, better ergonomics and many other productivity boosting features.
The originator of the Rockwell hardness tester has introduced its Tukon 2500 Minuteman ELT automated Vickers/ Knoop hardness tester.
The six-ounce PUMA Wapiti Stage continues this tradition with its high-grade 440A steel and drop-point blade-each of which bears the distinctive "diamond needle" proof mark of a Rockwell Hardness test; this verifies that the blade is at the exact correct hardness.
The indentation method with the Rockwell hardness tester is the best to simulate defects in the glass samples.
The Minuteman ELT series of semi- and fully automatic systems is suited for Knoop, Vickers and Rockwell hardness testing.