GB/T 16865-2023 "Samples and methods for tensile testing of wrought aluminum, mg and its alloy processed products" specifies the requirements and methods for tensile test samples for wrought aluminum, mg and its alloy plates, strips, foils, tubes, rods, molds, wires, forgings and other processed products. This standard is applicable to tensile testing at room temperature, high temperature and low temperature conditions. Samples are divided into room temperature, high temperature and low temperature tensile tests according to different Temperature ranges to determine their tensile strength, specified non-proportional extension strength, elongation after fracture, section cissing rate and other mechanical properties. The standard also describes in detail the application methods and measurement methods of various tests to ensure accurate mechanical properties data under different working conditions, providing an effective basis for evaluating the performance of materials in different environments.