Rockwell hardness tester TH722

BrinellVickersbenchtop

This hardness tester is designed to determine Rockwell,Brinel and Vickers hard-ness number. Among the others, Rockwell hardness test is the most popular one. According to the Brinell hardness test method, it can be used for determining the Brinell hardness number of unquenched steels, cast iron, non-ferrous metals and soft bearing alloys, etc. In accordance with the Rockwell hardness test method, the tester can also be used to determine the Rockwell hardness number of quenched steel parts(HRC), super-hard tool alloys(HRA), and soft or unhardened metals(HRB). According to the Vickers hardness test method, this tester can be used for measuring the Vickers hardness number of ferrous and non-ferrous metals. This tester is widely used in the factories of machinery and metallurgy, laboratories of colleges and scientific research institutes for hardness measurement. • Steel ball penetrator: Diameter of 1.586, 2.5, 5mm • Diamond cone penetrator: Cone apex angle 120°±30’ • Spherical apex angle 0.20±0.01mm • Diamond pyramid penetrator: Face angle 136°±30’ • The magnifying power used by the microscopic measurement • The magnifying power is: 75×; 37.5× • The minimum value of divisible degree for measuring the micro-drum wheel: When 75×, it is 0.002 m.m. When 37.5×, it is 0.004 m.m. • Measuring the length(L) of the indentation When 75×,it is 0.002 m.m. When 37.5×,it is 2.4 m.m. • The maximum height of the specimen: It is 200 m.m. for Rockwell’s measurement and test. It is 100 m.m. for Vicker’s measurement and test.