econgd
Mechanical
- Feb 27, 2020
- 1
For many years we used shear wave (SW) and time of flight diffraction (TOFD) UT as the primary method to inspect steam pipe welds at our steam plants (along with wet mag for surface inspection). We also used phased array UT (PAUT) in some cases where further classification is needed on an indication found using SW & TOFD. Our new NDE contractor is stating that PAUT is now the power industry standard. I haven't been able to find any reports or studies to verify that. Any comments would be appreciated.