Method for the production of a siderurgical product made of carbon steel with a high copper content, and siderurgical product obtained according to said method

摘要

The invention relates to a method for producing a siderurgical product made of carbon steel having a high copper content, according to which:-a liquid steel having the composition: 0.0005%<=1%; O.5<=Cu<=10%; 0<=Mn<=2%; 0<=Si<=5% 0<=Ti<=0.5%; 0<=Nb<=0.5%; 0<=Ni<=5%; 0<=Al<=2%, the remainder being iron and impurities, is produced;-said liquid steel is poured directly in the form of a thin strip having a thickness of no more than 10 mm;-the strip is subjected to forced cooling and/or is surrounded by a non-oxidizing atmosphere while having a temperature of more than 1000? C.;-said thin strip is hot rolled at a reduction rate of at least 10%, the temperature at the end of the rolling process being such that all of the copper is still in a solid solution in the ferrite and/or austenite matrix;-and the strip is coiled. The invention also relates to a siderurgical product obtained according to said method.