Charpy impact test

What is a Charpy impact test?

The Charpy impact test is a destructive method that measures the toughness of a material —its ability to absorb energy and resist brittle fracture. This standardized test is performed using a pendulum or drop hammer, often at reduced temperatures. During the test, the Charpy impact value is determined, a critical measure of the material’s impact resistance.

How Does a Charpy Impact Test Work?

In a Charpy impact test, a specimen with a small notch is subjected to a sudden impact load. The amount of energy required to fracture the specimen is measured and expressed as the Charpy impact value (in Joules). This value provides insight into how the material responds to shock loads, particularly at different temperatures.

Request a Charpy Impact Test

Do you have questions about the Charpy impact test, or would you like to have one performed? Contact Materials Testing Veendam. Our accredited laboratory (ISO 17025, L647) is ready to assist you.

Why Are Charpy Impact Tests Important?

Charpy impact tests are a valuable complement to tensile tests because they simulate more practical scenarios. Consider situations involving sudden loads at temperatures for which the material was not optimized, such as shock absorbers or ship hulls. Charpy impact tests help with:

• Preventing brittle fracture in critical components.
• Ensuring safety at low temperatures.
• Meeting standards for materials subjected to impact loads.
• Quality control of welded joints.

Request a Charpy impact test