GB/T 24523-2009 stipulates the method of rapid indentation (Brinell) Hardness test for metal materials. This method covers the principle, equipment requirements, detailed instructions on sample preparation and test steps, and introduces how to accurately calculate Hardness value based on indentation size. Compared with traditional brinell hardness test, it is more efficient, can quickly obtain metal hardness of materials data, and is widely used in various metal materials. It provides convenient and accurate Hardness measurement methods for metal processing, mass detection and other links, helping to improve production and testing efficiency.