Abstract: A cold-rolled and recrystallization-annealed flat steel product may include a ferritic microstructure, which possesses optimized formability and suitability for a wide variety of applications, including painting, for example. The flat steel product may include a steel comprising (in percent by weight): C: 0.0001%-0.003%, Si: 0.001%-0.025%, Mn: 0.05%-0.20%, P: 0.001%-0.015%, Al: 0.02%-0.055%, Ti: 0.01%-0.1%. The steel may further include at least one of Cr: 0.001%-0.05%, V: up to 0.005%, Mo: up to 0.015%, or N: 0.001%-0.004%, which may have the following mechanical properties: Rp0.2<180 MPa, Rm<340 MPa, A80<40%, and n value <0.23. At least one surface may have an arithmetic mean roughness Ra of 0.8-1.6 ?m and a peak count RPc of 75/cm. The present disclosure also concerns methods for producing flat steel products.

Abstract: A cold-rolled and recrystallization-annealed flat steel product may include a ferritic microstructure, which possesses optimized formability and suitability for a wide variety of applications, including painting, for example. The flat steel product may include a steel comprising (in percent by weight): C: 0.0001%-0.003%, Si: 0.001%-0.025%, Mn: 0.05%-0.20%, P: 0.001%-0.015%, Al: 0.02%-0.055%, Ti: 0.01%-0.1%. The steel may further include at least one of Cr: 0.001%-0.05%, V: up to 0.005%, Mo: up to 0.015%, or N: 0.001%-0.004%, which may have the following mechanical properties: Rp0.2?180 MPa, Rm?340 MPa, A80?40%, and n value ?0.23. At least one surface may have an arithmetic mean roughness Ra of 0.8-1.6 ?m and a peak count RPc of 75/cm. The present disclosure also concerns methods for producing flat steel products.

Abstract: Devices and methods for cleaning a roller of a system for processing strip-type material may involve a suction duct in addition to a nozzle that directs a gas flow onto a surface of the roller. The nozzle and the suction duct may be disposed in a hood that covers part of a circumference of the roller. Further, the nozzle can be disposed at an angle within a range of ±45 degrees with respect to a normal line extending orthogonally from the surface of the roller. Moreover, the nozzle may be spaced less than 50 mm apart from the surface of the roller.