For official documentation or to purchase the full standard, you can visit the ASTM E23 Product Page .
: Results typically include absorbed energy, test temperature, and an examination of the fracture surface to determine the percentage of shear fracture. Critical Applications
: Specimens may be heated or cooled (down to -196°C) to test behavior at different temperatures.
: A calibrated pendulum is released from a set height to strike and break the specimen. The machine measures the absorbed energy (recorded in Joules or foot-pounds ) based on how high the pendulum swings after the impact.
: The most common technique, where a notched specimen is supported horizontally at both ends and struck by a swinging pendulum hammer at the center, opposite the notch.
: The standard specimen for Charpy tests is a rectangular bar measuring 55 mm x 10 mm x 10 mm . It typically includes a machined V-notch (2 mm deep at a 45° angle) to concentrate stress. Testing Procedure Highlights
: Specimen dimensions and notch geometry (usually V-shaped or U-shaped) must be precisely machined to reduce variability.
: To maintain temperature integrity, specimens must be transferred from the conditioning bath to the testing machine and struck within 5 seconds .
For official documentation or to purchase the full standard, you can visit the ASTM E23 Product Page .
: Results typically include absorbed energy, test temperature, and an examination of the fracture surface to determine the percentage of shear fracture. Critical Applications
: Specimens may be heated or cooled (down to -196°C) to test behavior at different temperatures.
: A calibrated pendulum is released from a set height to strike and break the specimen. The machine measures the absorbed energy (recorded in Joules or foot-pounds ) based on how high the pendulum swings after the impact.
: The most common technique, where a notched specimen is supported horizontally at both ends and struck by a swinging pendulum hammer at the center, opposite the notch.
: The standard specimen for Charpy tests is a rectangular bar measuring 55 mm x 10 mm x 10 mm . It typically includes a machined V-notch (2 mm deep at a 45° angle) to concentrate stress. Testing Procedure Highlights
: Specimen dimensions and notch geometry (usually V-shaped or U-shaped) must be precisely machined to reduce variability.
: To maintain temperature integrity, specimens must be transferred from the conditioning bath to the testing machine and struck within 5 seconds .