Hardness Testing
Hardness testing on sheet and strips are mainly performed to characterize the overall surface hardness of a specimen and for metallographical testing. Depending on the application, hardness tests are performed to ISO 6506-1, (Brinell), ISO 6507-1 (Vickers), ISO 6508-1 (Rockwell), ASTM E10 (Brinell), ASTM E384 (Vickers and Knoop), and ASTM E18 (Rockwell). In addition, other methods or specifications are used for certain application areas (for example, the European standard EN 2002-7 is used in aerospace).