Magnetic Particle Inspection

Magnetic Particle Inspection Test

Experienced Magnetic Particle Inspection Specialists

At Bravura Inspection, we provide professional Magnetic Particle Inspection (MPI) services, one of the most effective and widely used non-destructive testing methods for detecting surface and near-surface defects in ferromagnetic materials. This technique is essential for identifying issues such as cracks, laps, seams, and inclusions in materials like iron, nickel, and cobalt.

Our experienced and PCN-certified technicians employ advanced equipment, ranging from portable yokes to bench units, to deliver thorough and accurate inspections both in-house and on-site. Whether you’re inspecting welded assemblies, castings, or forged components, we help ensure the ongoing integrity, safety, and performance of your assets. Bravura Inspection is trusted across industries including oil and gas, manufacturing, power generation, and infrastructure for delivering high-quality, reliable MPI solutions.

What is Magnetic Particle Inspection?

Magnetic Particle Inspection (MPI) is a non-destructive testing method used to detect surface and near-surface discontinuities in ferromagnetic materials such as iron, nickel, and cobalt. This technique is highly effective in identifying fine defects in castings, forgings, and welded assemblies.
Magnetic Particle Inspection
Magnetic Particle Inspection Test

How Does Magnetic Particle Inspection Testing Work?

Magnetic Particle Inspection involves generating an internal magnetic field within the component being tested. When flaws such as non-magnetic voids are present, the magnetic field is interrupted, creating a flux leakage field at the defect location. Magnetic particles, either in dry powder form or suspended in a liquid solution, are then dusted over the magnetized area. These particles are attracted to the leakage field, gathering around the defect and making it visible to the naked eye.

Benefits of Magnetic Particle Inspection

Cost-Effective

MPI is a highly economical method for detecting surface-breaking and slightly subsurface defects, making it a popular choice for routine quality assurance and periodic inspections across various industries.

High Sensitivity

The method provides excellent sensitivity to even the smallest flaws, including fatigue cracks, shrinkage cracks, and porosity, particularly in critical weld areas or stressed components.

Versatile Application

Magnetic Particle Inspection is suitable for a wide variety of applications and can be used on ferromagnetic materials of various shapes and sizes. It is particularly valuable for inspecting castings, forgings, structural components, and welds where surface integrity is paramount.

On-Site and In-House Capabilities

Bravura Inspection offers both mobile and fixed-unit MPI testing, allowing us to perform inspections either at your facility or within our dedicated testing lab. This flexibility ensures minimal disruption to operations while maintaining the highest inspection standards.