NDT Services
Magnetic Particle Testing
Magnetic particle testing detects surface and near-surface discontinuities in ferromagnetic materials by applying magnetic fields and ferrous particles to reveal flaws.
A magnetic field is induced in the test piece using direct or indirect magnetization. Any surface or near-surface discontinuity creates a flux leakage field that attracts applied ferrous particles, forming a visible indication at the flaw location. The method is highly sensitive to cracks, seams, laps, and other linear discontinuities.
We offer both wet and dry particle methods using AC, DC, HWDC, and permanent magnet techniques. Fluorescent particles under UV-A lighting provide maximum sensitivity for critical applications, while visible (contrast) particles work well in field conditions where darkened environments are impractical.
Magnetic particle testing is widely used for weld inspection, structural steel evaluation, casting and forging examination, in-service component inspection, and pressure equipment integrity verification. The method works on carbon steel, low-alloy steel, and other ferromagnetic materials.
All examinations are performed per applicable codes and standards including ASME Section V, AWS D1.1, AWS D1.5, ASTM E1444, and ASTM E709. Our technicians are qualified per SNT-TC-1A through our ASNT-certified employer program.
Fast, reliable detection of surface and near-surface defects.