Digital Rockwell 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.The definition of hardness testing is 'a test to determine the resistance a material exhibits to permanent deformation by penetration of another harder material. ' However, hardness is not a fundamental property of a material.Hardness is the resistance of a material to localised plastic deformation. Hardness ranges from super hard materials such as diamond, boron-carbide to other ceramics and hard metals to soft metals and down to plastics and soft tissues.