charpy impact test specimen

charpy impact test specimen

Charpy test specimens normally measure 55x10x10mm and have a notch machined across one of the larger faces. The notches may be:

•         V-notch – A V-shaped notch, 2mm deep, with 45° angle and 0.25mm radius along the base

•         U-notch or keyhole notch – A 5mm deep notch with 1mm radius at the base of the notch.