TY  - JOUR
PY  - 2007//
TI  - Stress corrosion failure of high-pressure gas pipeline
JO  - Engineering failure analysis
A1  - Hasan, Faisal
A1  - Iqbal, Javed
A1  - Ahmed, F.
SP  - 801
EP  - 809
VL  - 14
IS  - 5
N2  - 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.    Keywords: Pipeline transportation<p />
LA  - en
SN  - 1350-6307
UR  - http://dx.doi.org/10.1016/j.engfailanal.2006.11.002
ID  - ref1
ER  -