Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant

An integrated casting-rolling plant for producing a ferritic hot-rolled strip by carrying out the process comprising:

• the continuous casting plant for continuously casting the liquid steel to give the strip having the slab or thin slab cross section;
• a multipart roughing stand for prerolling the strip to give the intermediate strip;
• the at least one inductive surface heating module being configured for heating the broad sides of the intermediate strip to a surface temperature of ≥1000° C., wherein the at least one surface heating module is heated by an alternating current having a first frequency f1;
• the descaling apparatus configured for descaling the broad sides of the heated intermediate strip;
• the multipart finishing stand configured for final rolling of the descaled intermediate strip to give the hot-rolled strip, wherein the descaled intermediate strip after descaling and without further cooling enters the first set of the finishing stand with an average temperature of 775-900° C. and at least the last rolling pass in the finishing stand takes place in the ferritic temperature range of the steel;
• a cooling section configured for bringing the hot-rolled strip to coiler temperature;
• and
• the coiler configured for winding up the hot-rolled strip.