Scales for Hardness Testing
Monday, January 30th, 2012For the portable hardness testers the Leeb’s method is the most used & well known techniques. The main measuring value in this method is the HL value. This value of HL is simply a ration of two velocities. Rebound velocity and impact velocity. This ration is multiplied by thousand in order to express the value conveniently. Different probe is used in different testers according to them the value is expressed either by HLD or HLG. But practically while preparing a test report we use other units. Our most devices like the H1800, H2000 or others gives you the hardness values in HRC, HRA, HV, HLD etc.