EMR Safety Rating -- 0.97
EMR Safety Rating -- 0.97




Magnetic Particle Testing performed by North Country NDT is a cost-efficient process of non-destructive testing using water-based ferromagnetic material. Ferromagnetic is defined by the American Society of Mechanical Engineers (ASME ) as “a term applied to materials that can be magnetized or strongly attracted by a magnetic field.” Magnetic Particle Testing primarily checks for surface defects and discontinuities.  It can also reveal defects and discontinuities slightly below the surface, as well.


Examples of ASME Code-Required Inspections


The ASME codes of construction often recommend magnetic particle examination, or dye penetrant examination, to detect the possibility of surface defects. If the base material is non-magnetic, the only choice offered by the ASME is dye penetrant examination. However, if material is ferromagnetic, then magnetic particle testing can be used. Some examples of typical ASME Code-required inspections include, but are not limited to:

  • Castings for surface defects
  • Plates for laminations in corner joints when the edge of one plate is exposed and not fused into the weld joint
  • Head spin hole plug welds
  • Weld metal build-up on plates
  • Areas where defects have been removed before weld repair
  • Internal and external surfaces of boiler and pressure vessels
  • Vessels in liquid ammonia service
  • Components subjected to fire damage
  • Locomotive and historical boilers
  • Yankee dryers
  • Cargo tanks
  • Vessels in LP gas service
  • Weld repairs and alterations to pressure-retaining items

For More Information


Contact North Country NDT for more information about Magnetic Particle Testing and how we can utilize it for your business.

Contact Us Today!

North Counrty NDT, LLC

P.O. Box 283

Ticonderoga, NY  12883



Phone: +1 (518) 216-4017

Email: info@northcountryndt.com

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