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 What Is Nondestructive Testing?

Nondestructive testing (NDT), also known as nondestructive evaluation (NDE) and nondestructive inspection (NDI), is a multidisciplinary profession that blends quality assurance and materials science. NDT is used to inspect and evaluate materials, components, or assemblies without destroying their serviceability.

Through a set of test methods, skilled technicians identify cracks, voids, inclusions, and weld discontinuities, as well as identify misassembled subcomponents.NDT is used to ensure product integrity and reliability, control manufacturing processes, lower production costs, and maintain a uniform quality level. Without it, the safety and reliability of components can be seriously jeopardized.

This makes NDT crucial to help prevent catastrophic failures such as airplane and locomotive crashes, pipeline leaks and explosions, nuclear reactor failures, and ship disasters.

Industries that Rely on NDT
  • Aerospace/Aviation/Aeronautics
  • Power Generation (nuclear, wind, electric)
  • Oil and Gas/Petrochemical
  • Chemical
  • Infrastructure (bridges, highways, buildings)
  • Transportation (Automotive, Railroad)
  • Maritime/Marine/Underwater
  • Construction
  • Manufacturing
  • Research

In essence, NDT is the linchpin that ensures the quality, safety, and reliability of products and structures across diverse sectors.

Watch more on Nondestructive Testing @ ASTN’s YouTube Channel

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