Overview:Development of Clean Steel Technology at Baosteel

The development of Baosteel's clean steel technology(CST) is introduced.The initial stage where Baosteel began to develop its CST and the levels Baosteel has reached at different stages are reviewed.Some technologies including impurity removal technique,etc.,are analyzed. The development of CST at Baosteel can be dated back to the first production of IF steels and pipeline steels in early 1990s.Now the technology has gradually covered nearly the whole range of products,such as tire cord steels,non-oriented silicon steels,drawn and iron can steels,stainless steels,bearing steels and so on,and has made up the core competence of Baosteel products.Some suggestions are given on the future research and development of CST at Baosteel for the purpose of keeping a sustainable development in this field.The following tasks should be focused on,such as the basic research of CST,inclusion control,full use of inclusions,stable and reliable low-cost manufacturing technology,reasonable process configuration,removal of harmful residual elements, and pushing this technology to the production of stainless steels and special steels.