Nippon Steel has developed X120 UOE linepipe as a part of joint development program with ExxonMobil. After establishment of the basic production technology of X120, the mechanical properties have been improved, especially to increase the suitability to strain based design application and the size range has been expanded. The combination of heavily deformed austenite grains and a mild accelerated cooling to lower cooling stop temperatures (MAC) achieves the aim to lower the yield strength (YS) and the yield to tensile (Y/T) ratio for the B-containing chemistry that was decided to meet the CG-HAZ toughness target. The properties of MAC pipes met the targets and the pipes with OD from 28” to 48” and WT from 13mm to 20mm were made for test purpose.
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2006 International Pipeline Conference
September 25–29, 2006
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
0-7918-4263-0
PROCEEDINGS PAPER
X120 UOE Linepipe With Improved Properties and Varied Sizes Available to Purchase
Hitoshi Asahi,
Hitoshi Asahi
Nippon Steel Corporation, Futtsu, Chiba, Japan
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Takuya Hara,
Takuya Hara
Nippon Steel Corporation, Futtsu, Chiba, Japan
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Eiji Tsuru,
Eiji Tsuru
Nippon Steel Corporation, Futtsu, Chiba, Japan
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Hiroshi Morimoto,
Hiroshi Morimoto
Nippon Steel Corporation, Futtsu, Chiba, Japan
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Yoshio Terada,
Yoshio Terada
Nippon Steel Corporation, Kimitsu, Chiba, Japan
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Masaaki Sugiyama,
Masaaki Sugiyama
Nippon Steel Corporation, Futtsu, Chiba, Japan
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Masahiko Murata,
Masahiko Murata
Nippon Steel Corporation, Otemachi, Chiyoda, Japan
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Naoki Doi,
Naoki Doi
Nippon Steel Corporation, Kimitsu, Chiba, Japan
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Naoshi Ayukawa,
Naoshi Ayukawa
Nippon Steel Corporation, Kimitsu, Chiba, Japan
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Hiroo Akasaki
Hiroo Akasaki
Nippon Steel Corporation, Otemachi, Chiyoda, Japan
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Hitoshi Asahi
Nippon Steel Corporation, Futtsu, Chiba, Japan
Takuya Hara
Nippon Steel Corporation, Futtsu, Chiba, Japan
Eiji Tsuru
Nippon Steel Corporation, Futtsu, Chiba, Japan
Hiroshi Morimoto
Nippon Steel Corporation, Futtsu, Chiba, Japan
Yoshio Terada
Nippon Steel Corporation, Kimitsu, Chiba, Japan
Masaaki Sugiyama
Nippon Steel Corporation, Futtsu, Chiba, Japan
Masahiko Murata
Nippon Steel Corporation, Otemachi, Chiyoda, Japan
Naoki Doi
Nippon Steel Corporation, Kimitsu, Chiba, Japan
Naoshi Ayukawa
Nippon Steel Corporation, Kimitsu, Chiba, Japan
Hiroo Akasaki
Nippon Steel Corporation, Otemachi, Chiyoda, Japan
Paper No:
IPC2006-10087, pp. 83-87; 5 pages
Published Online:
October 2, 2008
Citation
Asahi, H, Hara, T, Tsuru, E, Morimoto, H, Terada, Y, Sugiyama, M, Murata, M, Doi, N, Ayukawa, N, & Akasaki, H. "X120 UOE Linepipe With Improved Properties and Varied Sizes." Proceedings of the 2006 International Pipeline Conference. Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B. Calgary, Alberta, Canada. September 25–29, 2006. pp. 83-87. ASME. https://doi.org/10.1115/IPC2006-10087
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