NDT – Magnetic Particle Inspection


NDT – Magnetic Particle Inspection

Magnetic Particle Inspection is an Non-Destructive Testing (NDT) technique that detects surface and sub-surface imperfections on ferromagnetic materials. Test parts are magnetised and any surface flaws are shown via local magnetic flux leakages.

MPI can be performed using either wet or dry magnetic particles, which are applied after the test part has been magnetised. Any flaws that are present will attract these particles to the area causing a visible build up, which is easily analysed under ultraviolet light.

Materials Processed:

Nickel Alloys, Carbon Steels, Stainless Steels

Tank sizes: Gloucester

1m x 1m x 1m

Tank sizes: Cardiff

1m x 1m x 1m

The tank sizes shown above are approximate sizes only. If you have a larger part then please contact us as we may still be able to help.


Rectangle with a crack

Detects surface and near surface flaws

Shield with a clock for quick turnaround

Reliable, fast and economic process

Inspectors logo

Highly trained level 2 inspectors

Level 3 NDT

Full level 3 signed NDT techniques


Post machining inspection

Post plating inspection

Post grinding evaluation



Oil and gas

NDT – Magnetic Particle Inspection