Analysis and Comparison of Three Charpy Impact Test Method Standards for Metallic Materials

The Charpy impact test method standards for metallic materials (GB/T 229-2007, EN ISO 148-1:2016 and ASTM E23-18) were analyzed and compared from the aspects of test principle, sample requirements, test equipment, test procedures, impact test results processing and report. The results show that the contents of GB/T 229-2007 and EN ISO 148-1:2016 are basically the same. Compared with GB/T 229-2007 and EN ISO 148-1:2016, ASTM E23-18 impact test standard has more stringent requirements on specimen size and equipment dimension tolerance, and the relevant test regulations are more detailed.