Vickers Hardness Testing Machines

The Vickers hardness test or the 136 degree diamond pyramid hardness test is a microindentation method. The indenter produces a square indentation, the diagonals of which are measured. Vickers hardness number (VHN) can be found directly from the Vickers hardness testing machine.hardness tester, device that indicates the hardness of a material, usually by measuring the effect on its surface of a localized penetration by a standardized rounded or pointed indenter of diamond, carbide, or hard steel..