Magnetic Particle Testing (MT)
Magnetic Particle Testing (MT) is a non-destructive testing method used to detect surface and slightly subsurface discontinuities (cracks, laps, porosity) in ferromagnetic materials. MT magnetizes the component and applies magnetic particles (dry or wet fluorescent) which gather at defect sites and make indications visible for evaluation.
Our MT Services
Fast, accurate detection of surface and near-surface defects in ferromagnetic components using industry-standard MPI techniques. Field or shop service with certified technicians and clear, actionable
Wet Fluorescent MPI
High-sensitivity inspection using fluorescent particles and UV lighting for superior contrast and easier detection of fine defects. Ideal for critical welds, shafts and highly stressed components.
Dry Powder MPI
Convenient, portable inspection method using dry magnetic particles. Well-suited for field work and larger assemblies when dark-room conditions are limited.
Coil, Yoke & Current-Flow Techniques
Flexible magnetization methods — longitudinal and circular — achieved with portable yokes, coils, or through current flow to ensure defect orientation is detectable.
Bench & Shop MPI
Controlled shop inspections with darkened booths, calibration standards, and documentation — includes pre-cleaning, magnetic particle application, and demagnetization when required.
Our Inspection Process
Scope & Planning: Review specifications, acceptance criteria and access; define magnetization and particle methods.
Pre-cleaning: Remove dirt, scale or paint where required for reliable indications.
Magnetization: Apply appropriate magnetization (yoke, coil, bench, or through-current) to detect expected defect orientations.
Particle Application: Apply dry powder or wet fluorescent particles; inspect under visible or UV light, respectively.
Evaluation & Reporting: Document indications, size/extent, and disposition recommendations; include photographs and sketches.
Demagnetization & Final Prep: Demagnetize parts when required and perform final cleaning or preservation steps.
Ready to schedule an MT inspection?
Contact our certified technicians for quotes, availability, and safety planning.