Method for continuous casting between twin rolls of ferritic stainless steel strip having high ductility and the resulting strip steel

摘要

The invention relates to a process for the casting of thin strip having a thickness of less than 10 mm, made of ferritic stainless steel, directly from liquid metal between two rotating cooled rolls having parallel horizontal axes, characterized in that:the said ferritic stainless steel contains (in percentages by weight) from 11 to 18% chromium, less than 1% manganese, less than 1% silicon and less than 2.5% molybdenum;the said ferritic stainless steel has carbon and nitrogen contents, the sum of the contents not exceeding 0.05%;the said ferritic stainless steel contains at least one of the stabilizing elements titanium, niobium, zirconium and aluminium and the sum of their contents is between 0.05 and 1%;the other elements present are iron and the usual impurities resulting from the smelting.The subject of the invention is also thin strip capable of being obtained by the above process.