The effect of reeling on sulfide stress cracking (SSC) resistance of welded line pipe was investigated in two different environments, a modified NACE B environment and a fitness for service environment (pH = 5/pH2S = 0.46psia). Micro hardness maps were performed to characterize the welds both in the as fabricated condition as well as in the strained and aged condition. The hardness values in all of the conditions, was less than 250VHN (in compliance with NACE requirements). Triplicate specimens were tested in the as fabricated, strained and aged intrados and extrados in both the environments. SSC resistance in a severely sour environment (pH = 3.5/1psia H2S) was affected by reeling with cracking observed in both the intrados and extrados samples. No cracking was observed in the as-fabricated welds. However, in a moderately sour environment (pH = 5/0.46psia H2S) reeling did not have a detrimental effect on the SSC performance. No evidence of cracking on the as-fabricated, intrados, and extrados welds. In moderate sour service reeling doesn’t appear to have a detrimental effect on the SSC behavior.
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ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2015
St. John’s, Newfoundland, Canada
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5650-5
PROCEEDINGS PAPER
Effect of Reeling on Sulfide Stress Corrosion Cracking of Welded API5LX65 Line Pipe Available to Purchase
Robin Gordon,
Robin Gordon
MicroAlloying International, Houston, TX
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Feng Gui
Feng Gui
DNV GL USA, Dublin, OH
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Ramgopal Thodla
DNV GL USA, Dublin, OH
Robin Gordon
MicroAlloying International, Houston, TX
Feng Gui
DNV GL USA, Dublin, OH
Paper No:
OMAE2015-42414, V004T03A008; 9 pages
Published Online:
October 21, 2015
Citation
Thodla, R, Gordon, R, & Gui, F. "Effect of Reeling on Sulfide Stress Corrosion Cracking of Welded API5LX65 Line Pipe." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 4: Materials Technology. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V004T03A008. ASME. https://doi.org/10.1115/OMAE2015-42414
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