Charpy Impact Test Standards Astm E23: Test Met... Page

: 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

: To maintain temperature integrity, specimens must be transferred from the conditioning bath to the testing machine and struck within 5 seconds .

: 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. Charpy Impact Test Standards ASTM E23: Test Met...

: Specimens may be heated or cooled (down to -196°C) to test behavior at different temperatures.

: Pipeline steels and pressure vessels operating in cold environments. : The standard specimen for Charpy tests is

For official documentation or to purchase the full standard, you can visit the ASTM E23 Product Page .

: The specimen is held vertically at one end, and the pendulum strikes the upper, non-gripped end. : The most common technique, where a notched

: 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.