GB/T 43115-2023 specifies the room-temperature shear test method for metal sheets and strips, applicable to such materials with thicknesses ranging from 0.5 mm to 3 mm. For sheets thicker than 3 mm, the standard may be referenced. It defines the test principles, sample preparation, procedures, and result processing. The core of the test involves shearing the specimen to fracture under pressure to determine the shear strength, providing critical data for the design and process development of products such as automotive stampings. The test requires a universal testing machine or pressure testing machine with an accuracy level of Grade 1 or higher, equipped with a specialized double-sided shear die. High-precision measuring tools are used to measure sample dimensions, ensuring accurate and reliable test data. This standard provides unified technical support for material quality control and engineering applications.