Charpy impact testing is a method often used at Exova. In power generation markets, this method is utilised in such services as mechanical testing. In our implementation of Charpy impact test, specimens are cut from metal samples, and a V-notch is placed in the center. Charpy impact testing can be performed at ambient and low temperatures (down to -325°F). Three Charpy test specimens are assessed, often in accordance with the ASTM standards.

Low Temperature Charpy Impact Testing at Exova:
At Exova, our low temperature Charpy impact testing involves placing the specimens into a chamber bath of propylene glycol, adding dry ice, and leaving specimens while a calibrated thermocouple records the temperature required for the test.  We then remove Charpy test specimens from the chamber, and immediately test for joules/lbs force by a swinging arm pendulum (which records the value to propagate the cut V-notch).

The size of specimen required for a Charpy impact test conducted at Exova is based on thickness of the metal.

Please request a quote or contact us to find out how Exova's Charpy impact test services can assist you.

Exova’s Tests related to Charpy impact testing include:
•    Hardness Test
•    Hardness Rockwell Test
•    Hardness Vickers Test
•    Hardness Brinell Test
•    Microhardness (Vickers, Knoop)
•    Tensile Testing Lab Services