
We offer onsite flaw detection services for inspection of structures, components, welds etc. We are equipped with state of art digital flaw detectors and our technicians are well qualified, certified for reliable & faster inspection.
In ultrasonic testing, high frequency sound waves created by a vibrated crystal in probe are transmitted into a material to detect imperfections or to locate changes in material properties. The most commonly used ultrasonic testing technique is pulse echo where-by sound is introduced into a test object and reflections (echoes) from internal imperfections or the part's geometrical surfaces are returned to a receiver. This method is very sensitive to detect crack type defects but requires extensive training for operator to interpret the result.
In ultrasonic testing, high frequency sound waves created by a vibrated crystal in probe are transmitted into a material to detect imperfections or to locate changes in material properties. The most commonly used ultrasonic testing technique is pulse echo where-by sound is introduced into a test object and reflections (echoes) from internal imperfections or the part's geometrical surfaces are returned to a receiver. This method is very sensitive to detect crack type defects but requires extensive training for operator to interpret the result.
Applications :
Advantages :
Limitations :
- 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
Limitations :
- Surface condition should be suitable for coupling of transducer
- Couplant (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

- Infrared Thermography
- Remote Visual Inspection
- Thickness Mapping of Boiler Tubes
- Time of Flight Diffraction (TOFD)
- Ultrasonic Phased Array
- Ultrasonic Flaw Detection
- Recordable UT
- Ultrasonic Thickness Gauging
- High Temperature Gauging
- Oxide Scale Measurement
- Magnetic Particle Inspection
- Liquid Penetrant Testing
- Onsite Hardness Testing
- Coating Thickness Measurement
- Material Sorting & Tube Testing
NDTS India (P) Limited
619 & 620, The Great Eastern Galleria
Plot No. 20,Sector 4, Nerul
Navi Mumbai - 400 706.
619 & 620, The Great Eastern Galleria
Plot No. 20,Sector 4, Nerul
Navi Mumbai - 400 706.
Tel. : + 91-22-6138 0600
+ 91-22-2770 3913
+ 91-22-2770 3923
+ 91-22-2772 9077
Fax : + 91-22-2770 3903
Email : info@ndts.co.in
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