Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Evaluation of HIC/SSCC Resistance for API-X70 Pipe Manufactured by JCO Bending Process and SA Welding

JCO 밴딩과 SA용접으로 제조된 API-X70급 강관의 HIC/SSCC 저항성 평가

  • Ryoo, Hoi-Soo (Korea Institute of Industrial Technology, Advanced Welding & Joining R&D Group) ;
  • Kim, Hee Jin (Korea Institute of Industrial Technology, Advanced Welding & Joining R&D Group) ;
  • Lee, Dong-Eon (SeAH Steel Corp., Quality Management Team New Material Research Part)
  • 유회수 (한국생산기술연구원 용접접합연구실용화그룹) ;
  • 김희진 (한국생산기술연구원 용접접합연구실용화그룹) ;
  • 이동언 (세아제강 품질경영팀 소재개발파트)
  • Received : 2014.06.24
  • Accepted : 2014.08.29
  • Published : 2014.10.31
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Abstract

This study aims at manufacturing SA welded API-X70 line-pipe with sour gas resistance. A pipe was manufactured by JCO bending process and SA welding using the API-X70 plate guaranteed HIC resistance. SA welded pipe was expanded in order to reduce the residual stress. The evaluation of a pipe for resistance to HIC and SSCC were performed by the RS D 0004 and RS D 0005 standards. For verification that a pipe has acceptable resistance to HIC, fullscale test was carried out. Results showed no cracking for the HIC and SSCC.

Keywords

References

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