Overview: What is Magnetic Particle Testing?
Working principle of magnetic particle testing: The inspected structure will be magnetized and a (liquified) magnetic particle powder is applied to its surface. Cracks and other defects in the material cause the magnetic flux to leak. This attracts magnetic particles, which form a cluster in the area of the defect, thereby providing a visible indication. The structure will be demagnetized after inspection. Since this method can only detect defects that are perpendicular to the magnetic field lines, a second inspection may be performed with a magnetic field rotated by 90°.
Use cases: surface and subsurface inspection
Materials: ferromagnetic metals
Testia’s qualifications: EN 4179 & ISO 9712 – see the full list of Testia’s qualifications on our certification page
Testia's Magnetic Particle Inspection Services
We offer magnetic particle inspection services for manufacturing in various industry sectors and in-service inspection (Part-145) for aerospace as well as Level 3 consultancy and MT training courses. We can perform both mobile MT inspection and serial inspections in our MT labs.
Typical use cases for this method include:
- pipes and containers
- welds (e.g. on aircraft fuselages, ship hulls, pipes etc.)
- valves
- industrial plants
- aircraft parts made of iron
Testia's Magnetic Particle Testing Products
Reference Blocks
Assure precise inspection measurements for any aerospace NDT device – thanks to our comprehensive catalog of reference blocks Reference blocks
