Transverse Cracking of HF-ERW Pipes
Transverse to pipe axis cracks across the weld line of high frequency-electrical resistance weld (HF-ERW) pipes of IS 10748 Grade 2 and size 406.4 mm outside diameter and 7.75 mm wall thickness were observed. Analytical techniques such as ultrasonic testing, optical microscopy and scanning electron microscopy with energy-dispersive spectroscopy were used for analysis and determination of the root cause.
KeywordsHF-ERW Transverse crack SEM EDS Ultrasonic testing Reheating Hot rolling
The authors are grateful to HFW Pipe Plant and MSU Baroda for supporting part of this analysis. The authors also would like to thank Welspun Corp for the permission to publish this work.
- 3.T. Kyada, J. Raghu Shant, R.K. Goyal, T.S. Kathayat, J. Fail, Anal. Prev. 15(2), ISSN 1547-7029 (2015)Google Scholar