DEVELOPMENT OF ALLOYING AND CONTROLLED ROLLING PARAMETERS PROVIDING THE REQUIRED LEVEL OF MECHANICAL PROPERTIES AND COLD RESISTANCE FOR PIPE STEEL OF STRENGTH CLASS K60 IN A URAL STEEL 2800 MILL

摘要

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.