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©2018 Graviteq Pty Ltd. 

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 NDT Services 

Graviteq's Inspection division is equipped with state of the art NDT equipment, approved practices, procedures and qualified NDT Level I, II,III technicians as per AINDT ,CSWIP and PCN certification schemes.

 

To improve manufacturing quality and product reliability, components and structures are regularly inspected for discontinuities, defects or faults which may reduce their structural integrity leading to failure. Among the material testing methods developed for inspection purposes, Non-destructive testing (NDT) techniques present the advantages of leaving the components undamaged after inspection.

​All Graviteq NDT personnel hold internationally recognised qualifications and receive ongoing training to keep up to date with technological advances.

Ultrasonic Testing is an NDT method applied to detect internal flaws in materials, components and structures.

The ultrasonic waves travel through the material with some loss of energy (attenuation) due to material characteristics. The intensity of ultrasonic waves is measured, after reflection at interfaces (or flaw) or is measured at the opposite surface of the specimen (through transmission). The reflected beam is detected and analyzed to define the presence and location of flaws. The degree of reflection depends largely on the physical state of matter on the opposite side of the interface, and to a lesser extent on specific physical properties of that matter. For instance, ultrasonic waves are almost completely reflected at metal-gas interfaces, partial reflection occurs at metal-liquid or metal-solid interfaces. Ultrasonic testing has a superior penetrating power than radiography testing and can detect flaws deep (up to 5metre of steel) in the test objects. UT is quite sensitive to small flaws and allows the precise determination of the location and size of the discontinuities. Ultrasonic testing is commonly used to measure reduction in thickness of pipes, vessels, inspecting castings, rolled bars, plates, forgings, thin sheets, extruded components, drawn components, welds and other components

Evo Access is equipped with

  • State of the Art Ultrasonic flaw detection equipment with built-in DGS curves, AVG, AWS flaw sizing techniques for welds

  • Transducers suitable for critical inspections, most sensitive, high temperature and high attenuative materials inspection applications

  • Ultrasonic inspection professionals qualified and certified to Level I, II as per AINDT and PCN regulations.