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EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds

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Abstract
This paper presents the proposed revisions of the EPRG guidelines for the assessment of defects in transmission pipeline girth welds. The revisions cover Tier 2 of the guidelines, in particular (a) the extension of the guidelines to include Grade L555 (X80) material, (b) the assessment of surface-breaking defects with heights up to 5mm and (c) the assessment of multiple co-planar defects. Since the welds should be, at least, matching the pipe material in yield strength, the paper also defines the required levels of weld metal yield strength for the safe application of the guidelines.

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Citation

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Chicago
Denys, Rudi, Bob Andrews, Mures Zarea, and Gerhard Knauf. 2010. “EPRG Tier 2 Guidelines for the Assessment of Defects in Transmission Pipeline Girth Welds.” In Proceedings of the 8th International Pipeline Conference, 2:873–879. American Society of Mechanical Engineers (ASME).
APA
Denys, Rudi, Andrews, B., Zarea, M., & Knauf, G. (2010). EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds. Proceedings of the 8th International Pipeline Conference (Vol. 2, pp. 873–879). Presented at the 8th International Pipeline Conference (IPC 2010), American Society of Mechanical Engineers (ASME).
Vancouver
1.
Denys R, Andrews B, Zarea M, Knauf G. EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds. Proceedings of the 8th International Pipeline Conference. American Society of Mechanical Engineers (ASME); 2010. p. 873–9.
MLA
Denys, Rudi, Bob Andrews, Mures Zarea, et al. “EPRG Tier 2 Guidelines for the Assessment of Defects in Transmission Pipeline Girth Welds.” Proceedings of the 8th International Pipeline Conference. Vol. 2. American Society of Mechanical Engineers (ASME), 2010. 873–879. Print.
@inproceedings{1053329,
  abstract     = {This paper presents the proposed revisions of the EPRG guidelines for the assessment of defects in transmission pipeline girth welds. The revisions cover Tier 2 of the guidelines, in particular (a) the extension of the guidelines to include Grade L555 (X80) material, (b) the assessment of surface-breaking defects with heights up to 5mm and (c) the assessment of multiple co-planar defects. Since the welds should be, at least, matching the pipe material in yield strength, the paper also defines the required levels of weld metal yield strength for the safe application of the guidelines.},
  articleno    = {IPC2010-31640},
  author       = {Denys, Rudi and Andrews, Bob and Zarea, Mures and Knauf, Gerhard},
  booktitle    = {Proceedings of the 8th International Pipeline Conference},
  isbn         = {9780791844212},
  language     = {eng},
  location     = {Calgary, AB, Canada},
  pages        = {IPC2010-31640:873--IPC2010-31640:879},
  publisher    = {American Society of Mechanical Engineers (ASME)},
  title        = {EPRG Tier 2 guidelines for the assessment of defects in transmission pipeline girth welds},
  volume       = {2},
  year         = {2010},
}

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