Even for ferritic materials, it has been assumed that no consideration for the brittle fracture at low temperature is necessary on condition that the wall thickness of pressure equipment is less than roughly half an inch (12.7mm) from industrial experience. Nevertheless, brittle fracture incident occurred at a welded joint of a carbon steel pipeline used for transportation of crude oil at low temperature of −6°C in one of our refineries recently. The pipeline was 12.0 mm in thickness and it was found that significant crack-like flaw existed along inside of the welded joint. In this study, the assessment of the brittle fracture of thin wall welded joint with crack-like flaw was performed in accordance with Section 9 in API RP 579 (2000). Then it was concluded that brittle fracture assessment is necessary regardless of the wall thickness when significant crack-like-flaw is detected in pressure equipment, especially at low temperature condition.
Skip Nav Destination
ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4758-6
PROCEEDINGS PAPER
Brittle Fracture of Thin Wall Pressure Equipment
Yasushi Ogayu
Yasushi Ogayu
Idemitsu Kosan Company, Ltd., Chiba, Japan
Search for other works by this author on:
Yasushi Ogayu
Idemitsu Kosan Company, Ltd., Chiba, Japan
Paper No:
PVP2006-ICPVT-11-94046, pp. 411-414; 4 pages
Published Online:
July 23, 2008
Citation
Ogayu, Y. "Brittle Fracture of Thin Wall Pressure Equipment." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 7: Operations, Applications, and Components. Vancouver, BC, Canada. July 23–27, 2006. pp. 411-414. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-94046
Download citation file:
4
Views
0
Citations
Related Proceedings Papers
Related Articles
Alignment Rule for Non-Aligned Flaws for Fitness-for-Service Evaluations Based on LEFM
J. Pressure Vessel Technol (August,2009)
Crack Arrest Toughness of a Heat-Affected Zone Containing Local
Brittle Zones
J. Offshore Mech. Arct. Eng (November,1996)
Safety Assessment of Steels and Welds Under Cyclic and Monotonic Loadings at Low Temperatures
J. Energy Resour. Technol (December,1984)
Related Chapters
Impact Testing
A Quick Guide to API 510 Certified Pressure Vessel Inspector Syllabus
Hydrostatic Testing and Brittle Fracture
A Quick Guide to API 653 Certified Storage Tank Inspector Syllabus: Example Questions and Worked Answers
A 3D Cohesive Modelling Approach for Hydrogen Embrittlement in Welded Joints of X70 Pipeline Steel
International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions