Taking grain refinement as the main line, the process system for producing high-strength and high-toughness pipeline steels X60 and X65 on a 1700mm hot rolling mill is studied . The heating , rolling and cooling processes in the Y recrystallization zone a […]

HP295 hot-rolled steel coils in the newly developed hot-tandem rolling mill has been progressing smoothly. However, starting from the second half of 1996 , several users reported that quality problems occurred during the use of HP295 steel coils, mainly d […]

the quality problems of the thin slab continuous casting and rolling trial production of Zhuzhou Iron and Steel Co., Ltd. Q195 , and hopes to be resolved as soon as possible. […]

The characteristics of the imported all-hydrogen bell-type annealing furnace were introduced, combined with the actual production conditions of cold rolling mills, various factors affecting the annealing process of Q195F steel were analyzed, and the annea […]

HP295 were found out , and corresponding solutions were proposed. the HP295 hot-rolled steel plate produced by continuous casting billet, which has good size, stable mechanical properties and excellent welding performance, but the comprehensive bottle for […]

Abstract: This paper introduces the general situation of the development of high weather resistance and high strength cold-rolled structural steel, and the application of steel in the manufacture of railway vehicles. […]