ULTRASONIC Disadvantages are obvious for the hardness measurement commonly used like Brinell, Rockwell, Vickers, Leeb, etc. Rockwell and Brinell with heavy loading force and big indentation, lead to serious destruction on sample surface. Vickers apply optical measurement, but only professional technicians can operate smoothly, impossible to measure hardness of heavy work piece, installed machinery and permanently assembled parts. Leeb hardness tester apply rebound and indirect method to measure hardness, easily lead to big deviation when convert to Brinell, Rockwell and Vickers scales.Ultrasonic hardness tester UHT-910 applies ultrasonic contact impedance method to do comparative hardness measurement for testing pieces, with advantages of high accuracy, efficiency, portable and easy operation.Ultrasonic hardness tester UHT-910 is widely used to measure hardness of small forgings, cast material, weld inspection, heat affected zone, Ion-nitride stamping dies and molds, forms, presses, thin walled parts, bearings, tooth flanks, etc. 

• High Durability