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[20] Effect of cold rolling and annealing on mechanical properties of HSLA steelI. Schindler a,*, M. Jano?ec a, E. M237。steck253。 b, M. R249。i232。ka b, L. 200。237。ek a, . Dobrza241。ski c, S. Rusz a, P. Such225。nek aa .nstitute of Modelling and Control of Forming Processes, V?B – Technical University of Ostrava, Czech Republic HUT – V225。lcovna za studena, spol. s ., Czech Republicc .ivision of Materials Processing Technologies, Management and Computer Techniquesin Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44100 Gliwice, Poland* Corresponding author: Email address: @Received 。 published in revised form ABSTRACT Purpose: was to examine effect of the parameters of cold deformation and recrystallization annealing on mechanical properties of a Nbmicroalloyed HSLA steel.Design/methodology/approach: Research of strip steel QStE 420 was based on a bination of laboratory cold rolling, recrystallization annealing in vacuum furnace, mechanical (particularly tensile) tests andmetallographic analyses.Findings: It was validated that by a sophisticated bination of size of previous cold reduction size and parameters of the following annealing it is possible to impact markedly a set of final properties of particular strips.Formability of the studied HSLA steel rises and vice versa strength properties fall with an increasing temperature of annealing.Research limitations/implications: The experiment should be supplemented by additional TEM analyses explaining the behaviour and role of precipitates.Practical implications: The experimentally obtained particular trends of mechanical properties may be utilized for optimization of conditions of heat treatment of the investigated HLSA steel in a cold strip rolling mill, reflecting the specific requirements for a relation between strength and plastic properties.Originality/value: Experimental potentialities of the Institute of Modelling and Control of Forming Processes in the sphere of cold rolling and heat treatment were introduced in their integrity for the first time.Keywords: Mechanical properties, HSLA steel strip, Cold rolling, Recrystallization annealingReference to this paper should be given in the following way:I. Schindler, M. Jano?ec, E. M237。steck253。, M. R??i?ka, L. ?237。\u382Xek, . Dobrzański, S. Rusz, P. Such225。nek,