Brinell hardness testing insight | Struers.com
His solution was to press a railway wheel-bearing ball into the material and then measure the size of the mark it left. The method proved reliable and in 1900 the Brinell hardness test was officially born. Today, the Brinell test is performed using a Brinell hardness test unit. The machine presses a tungsten carbide ball into the sample, and ...