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The aim of work was to describe by a single equation deformation resistance of IF steel with titanium in the temperature range of 700 to 1200 °C, in relation to the forming temperature T [°C], equivalent strain ? and equivalent strain rate ? [s-1]. Chemical composition of the investigated material (in wt %) was as follows: 0.004 C – 0.127 Mn – 0.008 Si – 0.008 P – 0.009 S – 0.041 Al – 0.003 N – 0...