NDT Services

Magnetic Particle Testing (MPT)

Fast and reliable surface crack detection in ferromagnetic materials

What is Magnetic Particle Testing?

Magnetic particle testing detects surface and near-surface cracks in ferromagnetic materials by applying a magnetic field and iron particles that cluster at defects.

How It Works

Magnetization

Magnetize the part using magnets or electric current.

Particle Application

Sprinkle or spray magnetic particles on the surface.

Defect Revelation

Particles cluster at flux leakage points, revealing cracks.

Magnetic Particle Testing in Action

Advanced MPT Equipment

Real-time Inspection

Defect Detection Results

Advantages

Fast, portable, and highly sensitive for surface defects
Cost-effective for ferromagnetic materials

Limitations

Only works on ferromagnetic materials
Cannot detect deep internal flaws
Demagnetization required post-inspection

Practical Applications

Steel Welds

Critical weld defect detection

Castings

Surface crack identification

Railway Rails

Rail integrity inspection

Bolts & Fasteners

Critical component testing

Pipelines

Pipeline integrity verification