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The Rockwell hardness test can be conducted on different types of hardness testers. [12] Benchtop hardness testers can be found either in a digital or analog model. Digital models utilize a digital display whereas the analog models display results on a dial on the machine. Other testers are portable. [citation needed] The determination of the ...
Suppliers of materials and component testing systems ASMEC GmbH are based in Radeberg, Germany. ACMEL Labo : a member of the Zwick/Roell Group since 2002, it develops a range of devices for testing cement and mortar. GTM Testing and Metrology GmbH : A manufacturer of load cells, torque transducers and multi-component transducers.
A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels.
Brinell hardness test (HB) BHN and HBW are widely used [7] Knoop hardness test (HK), for measurement over small areas, widely used to test glass or ceramic material. [8] Janka hardness test, for wood; Meyer hardness test; Rockwell hardness test (HR), principally used in the USA. HRA, HRB and HRC scales are most widely used.
Vickers hardness test; Brinell scale This page was last edited on 16 November 2024, at 12:16 (UTC). Text is available under the Creative Commons ...
Hugh M. Rockwell (inventor) and Stanley P. Rockwell (metallurgist) developed the Rockwell Hardness tester while both were associated with The New Departure Manufacturing Co. in Bristol, Ct. Patent #1,294,171 was applied for on 7/15/1914, and issued on 2/11/1919.