About NDT

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Non-destructive testing (NDT) or non-destructive evaluation (NDE) is used in manufacturing, fabrication and in-service inspections to ensure product integrity and reliability, to control manufacturing processes, lower production costs and maintain quality.

NDT and NDE are forms of testing or evaluating fabricated components that do not destruct, destroy or affect the serviceability of the component. Discontinuities and differences in material characteristics are more effectively found by NDT.

NDT and NDE play a critical function within the Construction and Manufacturing Industries around the world.

In this blog, we’ll discuss four main types of NDT/NDE – Liquid Penetrant Inspection, Magnetic Particle Testing, Radiographic Testing and Ultrasonic Testing.

Introduction –

There are many different forms of NDT/NDE. Some are considered volumetric, and others are categorized as surface only. Visual Testing, Magnetic Particle and Liquid Penetrant Inspections are surface only, whereas Ultrasonic and Radiographic are considered volumetric, meaning that they are able to “look” inside the component to find defects that would not be visible without cutting into the component.

Depending on which code or standard a fabrication is built and welded to, there are different acceptance and rejection criteria for the different NDE disciplines.

At Industrial NDT , we regularly perform Magnetic Particle, Liquid Penetrant, Ultrasonic Testing and Radiographic Testing. Some of these disciplines can be performed in-house, pro-actively, but all disciplines require a third party to come in and perform the testing and provide the reports.

Ultimately, NDT/NDE is a way of confirming the quality, integrity and reliability of a weldment without doing any harm to the end product. The NDT/NDE reports give our customer’s the satisfaction that their product is up the code or standard it was designed to.

Here a deeper look at some of the most common types of NDT/NDE: