Eddy current (EC) testing is a non-contact method for inspecting welds and other metallic parts for defects like cracks and corrosion. It’s a popular choice for inspecting welds in the aerospace, automotive, and petrochemical industries.

Here are some advantages of eddy current testing for welds:

No surface preparation: You don’t need to remove paint or other coatings, which saves time and money.

Can detect small defects: EC testing can detect surface cracks as small as 0.05 millimeters.

Can inspect through coatings: EC testing can inspect welds through paint or metallic coatings up to 2 millimetres thick.

Can inspect uneven surfaces: EC testing can inspect welds with uneven surfaces.

Can inspect high-temperature and underwater surfaces: EC testing can be used on high-temperature and underwater surfaces.

Here are some things to consider about eddy current testing:

Can’t detect defects that aren’t in contact with the current: The current always runs parallel to the surface, so defects that aren’t directly touching the current may go undetected.

Not ideal for large areas: EC testing isn’t ideal for inspecting large areas.

Can be affected by magnetic permeability: EC testing can be affected by changes in magnetic permeability, which can make it hard to use on ferromagnetic materials.

APPLICATIONS

Weld inspection – Structural / Piping
Casting / Forgings / Valves
Painted Surface
Jack Up Rig, Semi-Submersible Rigs, Marine & Offshore Structures