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Magnetic particle Testing (MT) is used to locate surface and slightly subsurface discontinuities or defects in ferromagnetic materials. Such flaws present in a magnetized part will cause a magnetic field i.e. flux, to leave the part.

If the magnetic particles are applied to this surface, they will be held in place by the flux leakage to give a visual indication. A magnetic particle test will be conducted by creating a magnetic field in a part and applying the magnetic particles to the test surface.

Our experts utilize Magnetic Particle Testing to detect surface and near-surface flaws and defects. It is fast and relatively easy to apply, and surface preparation is not as critical as compared to other NDT methods. We offer both on-site and in-house services as per your requirement.


  • Fast method of inspection. Immediate indications are visible directly on the specimen surface
  • Very good sensitivity to fatigue cracking, hydrogen induced cracking, and stress corrosion cracking
  • Very portable inspection especially when used with battery powered equipment
  • Can detect both surface and near subsurface indications, and these are the most serious ones as they concentrate stresses
  • The method can be adapted for site or workshop use
  • Considered low cost compared to many other NDT techniques
  • Large or small objects with irregular shapes can be examined easily


  • What is Non Destructive Testing?

    Non Destructive Testing is defined as a method used to investigate the integrity of an object, material or system, without impairing its future usefulness.

  • Why is NDT used ?

    It is used to determine the following: a) In place quality of Concrete b) Health of Concrete] c) Influence of Time d) Non-availability of old drawings related to the structure.

  • What is the Accuracy?

    The accuracy of the diameter measured increase with decrease in cover. It also depends upon the diameter of the bar. For example if the cover is 30 mm and bar diameter is 25 mm the accuracy is + 1 mm. This accuracy can improve if either of these parameters i.e. diameter or cover is reduced

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