Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)

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Analysis of Pipeline Crack Causes Based on Mechanical Performance Testing of LNG Pipeline Under Service Conditions

Authors
Zhiguo Zhang1, Yanbing Wang2, Xianfeng Huang1, Yunwei Zhang3, Zhen Li1, Te Lu1, Hongyu Zhou2, Xiaoben Liu2, *
1PipeChina Beihai Liquefied Natural Gas Co. Ltd, Beihai, Guangxi, 536000, China
2National Engineering Research Center for Pipeline Safety, China University of Petroleum-Beijing, Beijing, 102249, China
3PipeChina Nanshan(Shandong) Natural Gas Co. Ltd, Yantai, Shandong, 265700, China
*Corresponding author. Email: xiaobenliu@cup.edu.cn
Corresponding Author
Xiaoben Liu
Available Online 9 May 2025.
DOI
10.2991/978-94-6463-708-3_22How to use a DOI?
Keywords
LNG pipeline; crack; service conditions
Abstract

This paper presents an experimental study on the tensile properties, impact toughness, and fatigue performance of 304/304L stainless steel used in LNG receiving station pipelines. The research obtained key performance indicators, including the tensile strength, Charpy impact energy, and the number of cycles to failure under different strain amplitudes for 304/304L stainless steel in LNG service environments. Additionally, the experimental results were utilized to analyse the causes of cracking in the inlet pipeline of an LNG receiving station. The results show that compared to room temperature, the strength of 304/304L stainless steel significantly increases at ultra-low temperatures, while its toughness decreases. However, 304/304L stainless steel exhibits good fatigue performance at both room and ultra-low temperatures. Fatigue was not identified as the cause of the cracking in the LNG pipeline. The most probable cause of the cracks is the large thermal stress induced during partial flow operation, as gravity and pressure alone cannot generate the cracks.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
9 May 2025
ISBN
978-94-6463-708-3
ISSN
2589-4943
DOI
10.2991/978-94-6463-708-3_22How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Zhiguo Zhang
AU  - Yanbing Wang
AU  - Xianfeng Huang
AU  - Yunwei Zhang
AU  - Zhen Li
AU  - Te Lu
AU  - Hongyu Zhou
AU  - Xiaoben Liu
PY  - 2025
DA  - 2025/05/09
TI  - Analysis of Pipeline Crack Causes Based on Mechanical Performance Testing of LNG Pipeline Under Service Conditions
BT  - Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
PB  - Atlantis Press
SP  - 188
EP  - 197
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-708-3_22
DO  - 10.2991/978-94-6463-708-3_22
ID  - Zhang2025
ER  -