What is eddy current testing?

Eddy current testing is a nondestructive testing method to evaluate the properties of conductive materials and their workpieces nondestructively by measuring the changes of induced eddy current in the workpiece under test based on the principle of electromagnetic induction,or to find defects.In the production of pipeline products,eddy current testing is one of the main means to control the quality of various metallic materials and a few non-metallic conductive materials,such as graphite and carbon fiber composites.

Advantages of eddy current testing:

The coil does not need to be in direct contact with the measured object during eddy current testing,which can be used for high-speed detection and easy to realize automation

Disadvantages of eddy current testing:

ET is not suitable for parts with complex shapes,and it can only detect the surface and near-surface defects of conductive materials,and the detection results are also easily affected by the material itself and other factors.

All the products produced by Hebei Haihao Group including seamless and welded steel pipes,butt welding pipe fittings,forged pipe fittings and flanges,can be subject to strict ET testing to ensure the quality of products.If you want to know more about our products,please email us:sales@haihaogroup.com