More than 40 years as a recognised hardness testing method, ASME, JIS, ISO, DIN, GOST etc.. The Leeb rebound hardness test method was developed in 1975 by Leeb and Brandestini to provide a portable hardness test for metals. It was developed as an alternative to the unwieldy and sometimes intricate traditional hardness measuring equipment.
Very well suited for the hardness testing of ferrous and non ferrous materials. Measurements are made in the Leeb Scale and depending on the instrument can be converted to Vickers, Brinell, Rockwell C & B and Shore. Materials that can typically be tested include cast steel, alloy tool steel, stainless steel, aluminum, bronze, copper, cast irons etc.
LEEB / REBOUND testers are NOT suited for testing the hardness of very thin parts like sheet metal, thin walled or very light weight parts.
Parts down to 2mm (0.11") when very well supported/coupled to a heavier part and up to any thickness can be tested with an Ultrasonic Hardness Tester. CLICK HERE