Stress Corrosion Failure of High-Pressure Gas Pipeline

Incidents of failure due to corrosion/stress corrosion cracking of high-pressure gas pipelines in Pakistan have been observed to occur after about 15–20 years of service. The present paper constitutes the failure analysis of an 18-inch diameter electric resistance-welded gas pipeline. The failure was characterized, on the basis of all the available evidence and the metallurgical examination carried out on the ruptured pipe, as a stress corrosion failure that had initiated at a longitudinal ‘stress raiser’. This stress raiser, which was essentially a manufacturing defect, constituted a longitudinal ‘step’ on the pipe surface that had resulted from the faulty trimming/shaving of the weld flash. The findings of this study, thus, emphasize the need for the care that must be taken during the shaving-off of the weld flash.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13506307
• Supplemental Notes:
  • Abstract reprinted with permission of Elsevier.
• Authors:
  • Hasan, F
  • Iqbal, J
  • Ahmed, F
• Publication Date: 2007-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 801-809
• Serial:
  • Engineering Failure Analysis
  • Volume: 14
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 1350-6307
  • Serial URL: https://www.sciencedirect.com/journal/engineering-failure-analysis

Subject/Index Terms

• TRT Terms: Cathodic protection; Corrosion; Corrosion protection; Cracking; Gas pipelines; Manufacturing; Service life; Stress corrosion; Welding
• Uncontrolled Terms: Rupture
• Geographic Terms: Pakistan
• Subject Areas: Construction; Design; Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 01052088
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 28 2007 12:02PM