We perform Dry Powder and Wet Fluorescent Magnetic Particle testing (MT) inspection services to find surface & near-surface defects in ferromagnetic materials.

Magnetic particle testing (MT) is a nondestructive testing method used to identify defects on the surface, and subsurface, of ferromagnetic materials by running a magnetic current through them. When the current is interrupted by a defect the magnetism behaves irregularly from that point, allowing the  inspector to determine the indication’s exact location.

As seen in this image, when an object is magnetized and defects have created these current irregularities, magnetic particles are spread over the surface, accumulating around the irregularities.