Leeb hardness testing

Leeb hardness testing is a method used to measure the hardness of materials by bouncing a small, standardized metal impact body off the surface. A device called a Leeb tester sends a quick, controlled impact, and a sensor captures how much the impact body bounces back. The harder the material, the less the impact body decelerates, resulting in a higher measurement value. This value, called the Leeb hardness number (HLD), quickly indicates the material's hardness, making it useful for inspecting large or hard-to-reach objects without damaging them.