Abstract：The steel and iron market enters the meager profit time. Improvement of competitive advantage depends on the scientific innovation and optimizing process to achieve variety steel strategy through low cost. As for the question mentioned above, combining the technical equip capacity of steelmaking and steel rolling process in Handan Iron and Steel Group, low cost X80 pipeline steel with heavy wall was produced through composition design such as low carbon, high Nb, low Cu, Ni and Mo by optimized HTP (OHTP). The test results show that microstructure, the mechanical properties, －15℃ drop hammer performance can reach the national standards and user‘s requirements. Meanwhile, the X80 pipeline steel with excellent low temperature toughness can meet the specification of heavy wall for hot rolling steel plate in natural gas transport project from west to east.
彭兆丰，吝章国，刘红艳，孙洪利. 采用OHTP生产低成本X80管线钢工艺研究与实践[J]. 钢铁, 2012, 47(4): 63-68.
PENG Zhao-feng,LIN Zhang-guo,LIU Hong-yan,SUN Hong-li. Study and Practices of Low Cost in OHTP Technical of X80 Pipeline Steel. Iron and Steel, 2012, 47(4): 63-68.
2012, Vol. 47 
