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Charpy impact test on metals

ISO 148-1, ASTM E23

In a Charpy impact test on metals, the standardized notched specimens are impacted with energies of up to 750 joules. The Charpy impact test is performed at ambient temperature, but also at low temperatures to determine, among other things, the transition temperature at low temperatures. 

Notched impact strength is an important characteristic for applications in pipeline construction and shipbuilding and can be determined with Charpy specimens in pendulum impact testers. The test method is described and defined in the international standard ISO 148-1 and in ASTM E23. The ISO standard is identical to the European standard EN ISO 148-1. 

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