Destructive Testing vs. Non-Destructive Testing: What's the Difference?

• Destructive Testing (DT) requires the material or component to be damaged or destroyed during testing.
• Non-Destructive Testing (NDT) inspects materials for defects without causing any damage.
• DT is used to determine properties such as strength, toughness, and failure limits.
• NDT is used to assess quality, detect flaws, and ensure safety while keeping the component in service.
• NDT is generally more cost-effective for inspecting critical assets that cannot be damaged.

In simple terms: Destructive Testing destroys the sample to evaluate its performance, whereas Non-Destructive Testing evaluates the sample without affecting its usability.