Inspection / Testing of Corrosion-Resistant Alloys (CRA)

The inspection and testing of Corrosion-Resistant Alloys (CRA) involves the application of Ultrasonic Inspection (UT) techniques to analyze and inspect austenitic welds. Because of the anisotropic nature of CRA weld-filler materials, it ultimately affects the ultrasonic-wave propagation by way of sound attenuation which can result in weld defects going undetected. To minimize this concern, inspection is completed through the use of angled longitudinal waves through probes than the more traditional approach used for mild-steel inspection. The probes are used on coarse-grained materials because it provides better signal-to-noise ratio than conventional probes.

Advantages of Corrosion-Resistant Alloys (CRA) Inspection / Testing

The inspection technique is implemented to accurately detect anomalies in austenitic welds. Because of the coarser grain structure of austenitic welds, a specialized method of inspection is necessary to ensure CRA weld defects go undetected.  

Is Corrosion-Resistant Alloys Inspection / Testing the appropriate technique for our assets?

Corrosion-Resistant Alloys Inspection/Testing can be applied on assets owned and operated by companies in a multitude of sectors, including:

  • Mining

  • Oil and Gas

Learn more about Corrosion-Resistant Alloys (CRA) Inspection/Testing and other advanced techniques with the help of our technical experts today