This standard specifies the method for determining the energy absorbed by metallic materials in the Charpy impact test (V-shaped and U-notched specimens). This standard does not include the instrumented impact test method, which is specified in GB/T 19748-2005 "Metallic Materials Instrumented Charpy Impact Test Method".
GB/T 229-2007 Referenced Document
GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing*, 2018-05-14 Update
GB/T 3808 Verification of pendulum-type impact testing machines*, 2018-07-13 Update
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values*, 2008-07-16 Update