charpy impact test temperature control

charpy impact test temperature control

CHARPY V-NOTCH IMPACT TESTING

ASTM E23 Charpy V-Notch Impact Testing 
ISO 148-1, 148-2 Charpy V-Notch Testing 
maintains three different impact testers, calibrated to perform both ASTM and ISO Charpy impact testing. Sample test temperature availability ranges from +300°F to -150°F. Material that requires ultra-low temperatures of -321°F and -452°F can also be accommodated, but require prior scheduling. Full size impact specimens are 10mm x 10mm x 25mm. The minimum controlling thickness for a Charpy V notch specimen is the 10mm thickness by 55mm long. The .25mm minimum specimen height is a sub size specimen. Sub-size specimens are typical for plate and tubing where the wall thickness controls the available material height. The acceptance criteria are based on wall or plate thickness ranges. Sub-size specimen values CAN NOT be converted to full size test values.