Can UT carry out on austenitic stainless steel ?
Yes, can conduct UT on stainless steel.
UT technician have high skill to interpret
Ultrasonic waves travel in ASS in a progressively irregular manner resulting in “false indications” along its path mainly due to back reflections from different planes of dendritic weld metal and large grain size. This is more pronounced in case of transverse waves. Mode conversions at interfaces, scattering and absorption add to the problem. C Scan or TOFD technique for multiple layer scans using longitudinal waves would be a better approach for improved detectability and test sensitivity