Nondestructive Testing (NDT) is the process of inspecting, testing or evaluating material, components or assemblies for discontinuities or differences in characteristics without destroying the serviceability of the part or system. In other word, when the Inspection or test is completed the part can still be used.
We provide 24X7 On-site Inspection Services by deploying world-class equipment’s with trained manpower as per various affiliations (ASNT, ISNT, ISO etc.) & customer requirements. Our team comprises of ASNT Level III’s, Level II’s Engineers & Technicians. Our strength’s lies in through knowledge and experience. Our collective experience of 20 years comes in handy when we are posed with unique challenges of providing our clients innovative solutions on NDT Inspection. By virtue of which our customers consider us the most reliable NDT Inspection Services provider. The industries we have served range from Oil and Gas, Refineries, Petrochemicals, Engineering, Manufacturing and many more…

In ultrasonic testing (UT), very short ultrasonic pulse –waves with center frequencies ranging from 0.1 to 15 MHz are transmitted into materials to detect internal flaws or to characterize materials. UT is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites.
We offer onsite flaw detection services for inspection of structures, components, welds etc.

Applications :

  • Most weld discontinuities including cracks, slag, lack of fusion, lack of bond, accurate thickness measurement possible
  • To measure intergranular corrosion quantitatively

Advantages :

  • Most sensitive to planar type defects
  • Test results known immediately
  • High penetration capability
  • Requires access from only one surface


  • Surface condition should be suitable for coupling of transducer
  • Coolant (liquid) required
  • Small, thin welds may be difficult to inspect
  • Reference standards are required
  • Requires a relatively skilled operator / inspector, and skilled interpretive personnel
  • Resolution of small defects near surface difficult

Ultrasonic Thickness Gauging :

UTG is a method of performing non-destructive gauging (measurement) of the local thickness of a solid element (typically made of metal) based on the time taken by the ultrasound wave to return to the surface. This type of measurement is typically performed with an ultrasonic thickness gauges. We offer on-site thickness gauging services for assessing corrosion in process plant, piping & equipment. We are equipped with state of art ultrasonic thickness gauges having the latest through coat technology where removal of paint from the surface is not required. These gauges have in-built data logger for storing thickness readings, A-Scans, B-Scans which can be later transferred to computer for generating reports.


  • Requires access from only one surface
  • Rate of corrosion & erosion is measured


  •  Need Surface preparation
  • Need Couplants

Magnetic Particle Inspection:






MPI is a NDT technique for detecting surface and subsurface discontinuity in ferromagnetic materials such as iron, nickel, cobalt and some of their alloys. We offer on-site magnetic particle inspection services using yoke type, prod type and coil type magnetizing equipment; dry powder, wet magnetic particles & wet fluorescent magnetic particle technique.


  • Most weld discontinuities open to or near the surface
  • Most suitable for cracks, laps, seams, voids, pits, subsurface holes, and other surface or slightly subsurface, discontinuities in ferromagnetic materials


  • Relatively economical and expedient
  • Test equipment is considered portable
  • Unlike liquid penetrant, magnetic particle can detect some near surface discontinuities
  • Can inspect through thin coatings


  • Application only to ferromagnetic materials as well as to surface or near-surface flaws
  • Parts should be clean before and after inspection
  • Thick coatings may mask rejectable indications
  • Some applications require parts to be demagnetized after inspection
  • Magnetic particle test requires use of electrical energy for most applications
  • Some potential for arc strikes on surface

Liquid Penetrant Testing:





LPI is widely applied as low cost inspection method used to locate surface breaking defects in all non-ferrous materials and ferrous materials; although for ferrous components magnetic particle inspection is often used. LPI is used to detect casting, forging & welding surface defects such as hairline cracks, surface porosity, leaks in new products and fatigue cracks on in-service components. We offer on-site liquid penetrant testing services using contrast or fluorescent penetrant for highly sensitive inspection. We offer on-site liquid penetrant inspection services. For detecting of surface breaking cracks in non-magnetic materials, we use both color contrast and fluorescent penetrant for highly sensitive inspection.


  • It is used to inspect metals for surface defects
  • Weld discontinuities open to surface i.e. cracks, porosity and seams


  • It can be used on a wide variety of materials: ferrous and nonferrous metals and alloys, fired ceramics, powdered-metal products, glass, and some types of organic materials
  • Portable, relatively inexpensive equipment
  • Expedient inspection results
  • Results are easily interpreted
  • Requires no electrical energy except for light source
  • Indications may be further examined visually
  • Adapted to volume processing permitted 100 percent surface inspection

  • Surface films such as coatings, scale, and smeared metal mask or hide rejectable defects
  • Parts should be clean before and after inspection
  • Bleed out from porous surfaces can also mask indications
  • Remain in contact with body surfaces for extended periods, they may cause skin irritation

On-Site Hardness Testing:





Conventional hardness testers, like Rockwell, Brinell or Vickers machines, require the test piece be brought to the testing device; but this is not always possible. Portable testing devices have been developed that permit in-situ hardness measurements thus offering quick and economical supplements to conventional, stationary testing machines. We offer on-site hardness testing services using Equotip range of portable hardness testers.


  • Coatings, Hardened Surfaces, Heat Affected Zones, Castings, Forgings, Sheet metal, Coils


KIRTI NDT 707/B-Wing Shree Sai Raj Park, Near Madhvi Banglow, Rajaji Path Rd, Dombivali East, Thane Maharashtra INDIA- 421201



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