What Is Non-Destructive Testing (NDT)?

Methods & Definition

What is Non-Destructive Testing?

Non-destructive testing (NDT) is a testing and inspection technique that is used in a variety of industries to evaluate the properties of materials, components or structures for any flaws, defects or discontinuities without damaging or destroying the original part.

Non-destructive testing is also known as non-destructive examination (NDE), non-destructive inspection (NDI) and non-destructive evaluation (NDE).

What Are The Advantages Of Using NDT?

  • NDT leaves tested parts undamaged
  • NDT is a very accurate way of testing
  • NDT is a safe testing method for operators
  • NDT is useful for testing welding quality
  • NDT provides operators with peace of mind

How can we help you?

Contact us today to find out how Capital NDT can help you with our wide range of non-destructive testing services.

What Is The Difference Between Destructive And Non-Destructive Testing?

Unlike NDT, destructive testing destroys or changes the part during the test so that even if it passes the test it can no longer be used. Examples of destructive testing include 3 point bend testing, tensile testing or macro sectioning. Non-destructive testing doesn’t damage or destroy the part and allows it to continue to be used after testing has finished.

What Are The Types Of Non-Destructive Testing?

There are a number of different types of non-destructive testing methods used, including:

  • Dye Penetrant Testing
  • Magnetic Particle Inspection
  • Eddy Current Testing
  • Ultrasonic Testing
  • Radiographic Testing
  • Ultrasonic Phased Array Inspection


For more information on our range of NDT testing methods visit our NDT Services page.


Why Do We Do Non-Destructive Testing?

Non-destructive testing plays a crucial role in assuring safety and reliability in a wide variety of industries. NDT is used to prevent accidents, improve reliability and test for defective parts. NDT can also be used to measure the size and thickness of a material for engineering purposes.

Where Is Non-Destructive Testing Used?

Non-destructive testing is used in a wide variety of industries, including Aerospace, Construction, Power, Oil & Gas and Engineering.

For more information on the range of sectors that use NDT across the UK, visit our Industries Served page.

What Is The Difference Between NDT And NDE?

Non-destructive evaluation (NDE) is often used interchangeably with NDT. However, NDE is a measurement technique that is more quantitative in nature and can be used to determine material physical properties such as fracture toughness.

For More Information On Our NDT Inspection Services

For more information on any of our non-destructive testing services contact our team by calling us on 01753 684 896
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