Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum th...Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum thickness/ outside diameter (T/D) 0.042 in 2011. Described in this paper is the research and development of the X70 UOE SAWL pipes by the company. The result shows that the said X70 linepipe has been in compliance with relevant requirements as specified in Specifications DNV-OS-F101 ,and has been successfully used in the South China Sea deepwater gas pipeline project.展开更多
文摘Baoshan Iron & Steel Co.,Ltd., (referred to as Baosteel) in China first succeeded in developing the U-ing-O- ing-Expanding (UOE) longitudinal submerged arc welded pipes (SAWLs) offshore linepipe of a maximum thickness/ outside diameter (T/D) 0.042 in 2011. Described in this paper is the research and development of the X70 UOE SAWL pipes by the company. The result shows that the said X70 linepipe has been in compliance with relevant requirements as specified in Specifications DNV-OS-F101 ,and has been successfully used in the South China Sea deepwater gas pipeline project.