Charpy V-Notch Testing for Carbon Steel

The Charpy impact test method, also known as the Charpy V-notch test, will determine the impact strength and toughness of carbon steel products to ensure it’s suitable for the specific application needs of your large-scale construction or manufacturing project. While testing for resilience, we can also gauge the longevity of the product to estimate its lifespan. Service Steel Warehouse offers impact testing on all of our carbon steel products.

broken impact test specimen

Impact Testing FAQs

Impact testing calculates the amount of energy absorbed during fracture to determine the toughness of the steel. The tests are performed at various temperatures to better understand the effects on impact energy. Results from these tests are useful in assessing whether or not a material is suitable for a specific application, and also provide an estimate of the product’s projected lifespan.

Charpy V-notch testing involves striking a standard notched, steel metal product with a weighted pendulum that’s swung from a specific height. The metal will break at its notched cross-section (hence the name “Charpy V-notch”) upon impact, and the pendulum’s upward swing is used to gauge the amount of energy absorbed (i.e. notch toughness) during the process. The energy absorption is used as an indicator of the brittleness of the metal.

Temperature is another factor that can impact the toughness of the metal. So when impact testing, the test is performed at a variety of temperatures, using the average from those results to calculate the final result.

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