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On the basis of studying the effect of chemical composition, controlled rolling temperature and deformation parameters, and accelerated cooling parameters, technology is developed for manufacturing pipe steel of strength class K60, providing under Ural Steel mill 2800 conditions the required level of mechanical properties and cold resistance.
The requirement is investigated for microalloying steel of strength class K60 with vanadium using thermomechanical rolling technology followed by accelerated cooling from the point of view of changing rolled product microstructure and mechanical properties. The effect of heating on rolled product mechanical properties, performed both using post-deformation accelerated cooling, and without it, is studied.
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