|
|
Research and Development of X60 Pipeline Steel by Flexible Thin Slab Rolling Process |
|
|
|
Abstract This paper has designed the composition of X60 pipeline steel based on the systematically research of Niobium micro alloy. The 87mm×1538mm thin slab has been obtained by controlling the parameters of FTSR process. In the rolling process, Controlled rolling and controlled cooling technology has been used to get the coil which thickness is 7.9mm.The microstructure of produce pipeline has no duplex grain structure by detection, and the mechanical property are all satisfied with the necessary. By checking out the fracture surface, the ductility dimple has been found and there is no laminate, the production has met the API-5L standard and engineering application.
|
Received: 28 October 2008
|
|
|
|
[1] |
CAO Yan-guang, LI Zhao-dong, DING Can-can, ZHANG Jin-wen, YONG Qi-long, GAO Jian-bing. Effect of niobium addition on hardenability of high-speed railway axle steel[J]. Iron and Steel, 2020, 55(6): 107-112. |
[2] |
CAO Jian-chun, YE Ya-ping, YIN Shu-biao, ZHANG Wei-qiang, CHEN Wei, ZHANG Yong-qing. Deformed austenite continuous cooling transformation in Nb microalloyed anti-seismic rebar[J]. Iron and Steel, 2019, 54(12): 81-88. |
[3] |
LI Na. Discussion about the cooling-controlled process of the SWRH 82B wire rod used for prestressed steel wire and steel strand[J]. Chinese Journal of Iron and Steel, 2017, 35(4): 6-10. |
[4] |
LI Da- zhao,SUO Zhi- guang,CUI Tian- xie,MENG Chuan- feng. Research status and progress on production of low carbon- alloying and high- strength steel with TMCP process[J]. Chinese Journal of Iron and Steel, 2016, 28(1): 1-7. |
[5] |
TIAN Fei,WANG Zi-rong,LI Zhao-dong,. Strengthening mechanism of batch annealed Nb microalloyed steel for automobile[J]. Iron and Steel, 2015, 50(9): 76-80. |
[6] |
CHEN Si- lian,HUI Wei- jun,SHAO Cheng- wei,ZHAO Xiao- li,DONG Han. Effect of controlled cooling on microstructure and properties of medium- carbon high- vanadium microalloyed steel[J]. Iron and Steel, 2015, 50(8): 77-82. |
|
|
|
|