Manufacturing method of 304 sparesless steel with titanium (Ti) added with good surface quality

摘要

The present invention relates to a method for improving the surface quality of hot-rolled and cold-rolled stainless steel sheets by preventing the formation of high-melting inclusions harmful to the surface quality by appropriately adjusting the slag composition of the refining furnace and the ladle slag composition in the steel-The present invention has been made in view of the above problems.;The present invention relates to a method for producing a Ti-added 304 stainless steel, wherein the Ti-added 304 stainless steel is mixed with a refining furnace slag in basicity (% CaO /% SiO₂): 1.5 to 1.8, and refining to 7 wt% or less of MgO in the slag furnace slag, and the basicity (% CaO /% SiO₂): It is a point to provide a method of manufacturing a method of manufacturing a Ti-added 304 stainless steel having good surface quality by adding CaO to the steel in a range of 1.8 to 2.2.