The purpose of a hardness tester is simply to measure the hardness of materials or products.

Testing the hardness of products is mainly to ensure the quality of the produced products. Only by testing to meet certain national standards can the products be recognized and sold Measuring hardness reflects the quality control of products in the production process, distinguishing between defective and qualified products. Through testing, the qualification rate of products can be improved and enhanced, which is of great significance to production enterprises.

In addition, various scientific and technological research institutes will also use it Directly investigate the use and significance of hardness in various fields.

Hardness testing can become a commonly used method in mechanical performance testing because its results can sensitively reflect the differences in material chemistry, microstructure, and processing technology under certain conditions. This method is widely used in inspecting raw materials, supervising the correctness of heat treatment processes, studying solid-state phase transformation processes, and researching new materials and alloys.

In China's machinery manufacturing industry, hardness testing method is commonly used for final heat treatment effect inspection. In fact, hardness testing is also a very important means of quality control in process management and production processes. For some production without heat treatment, hardness testing should be carried out to avoid mixing and wrong materials. During the machining process, hardness testing should also be used to monitor performance changes caused by annealing due to excessive cutting or grinding. Therefore, the scientific and rational application of hardness testing methods is worthy of attention.

Due to the correspondence between metal hardness and strength, hardness testing has a wider practical significance.