The GB/T 232-2024 standard specifies the method of bending test of metal materials, which is mainly used to determine the mechanical properties of metal materials under bending load. The test evaluates the plasticity, toughness and bending performance of metal materials by applying bending load. It is suitable for various metal materials, including steel, aluminum alloy, etc. The standard describes in detail the technical requirements of sample preparation, test equipment, loading conditions and bending angle, and gives the method of data processing and result evaluation. The standard provides a unified operating specification for the bending performance test of metal materials, which is widely used in materials research, quality control and engineering design.