Eddy currents are used in industries because of perfectly suited to inspecting non-ferrous alloys. You can therefore inspect large number of tubes rapidly and precisely.ECT is suitable for detecting and sizing metal discontinuities such as corrosion, erosion, wear, pitting, baffle cuts, wall loss, and cracks in nonferrous materials.ECT shall be used for tubes with outside diameters to 31⁄8 in.(79.4 mm) and below, and wall thicknesses from 0.017 in.(0.432 mm) to 0.120 in. (3.04 mm). ECT can be used for following applications.