Code Inspection & Testing Co.

Magnetic Particle Inspection

Take Charge of YOUR Inspections

Have Questions About

Get in Touch: Email or Call Code Inspection and Testing Co. Today! (337) 504-5904

Magnetic Particle Testing

NonDestructive Test (NDT) method used to inspect for surface and sub-surface discontinuities in most metals.

Quickly becoming one of the more commonly used NDT methods, magnetic particle inspections are key when it comes to detecting small hairline cracks or fractures. Most NDT procedures require an extensive pre-cleaning routine, but MPI requires very little, if no cleaning at all, and can be preformed using a wet or dry method.

Wet Magnetic Particle Testing (WMPT)

WMPT requires the specimen to be electrically charged. This is achieved by running a magnetic current through the component. Any present flaws or defects on the specimens surface will draw in or interrupt the flow of the magnetic current. The second step to this procedure is to sprinkle metal particles over the specimen. This creates a type of  ‘ indication’ or ‘flux leakage’ due to the particles being drawn in by the defects . The indications is examined by the inspector to determine the cause of the defect, and its characteristics.

Dry Magnetic Particle Testing (DMPT)

When deciding to use Wet or Dry Magnetic Particle Testing you must determine if you’re inspecting the subject for surface flaws or subsurface flaws. Dry Magnetic Particle Testing is preferred when the inspector is testing for very fine surface defects. The process is majority the same for both methods, the main difference requiring the specimens to be submerged in fluid during testing.

Benefits of Magnetic Particle Testing (MPI)

Proudly Serving our Customers for over ten years

Get More With Code Inspection and Testing Co. Services

NDT Services

X-ray, Ultrasonic, PMI, and LPT Inspections backed by over 14 years of experience.

Project Services

Experience in New Construction, Turnarounds, and Capital Projects, etc.

Industries Served

Exceeding Industry Expectations: API Inspectors, AWS Certified Inspectors.

Team Support

Offering Support, Management & Training That Compliments Our Services.