CREATION OF AN EFFECTIVE TECHNOLOGY FOR THE PRODUCTION OF COLD-ROLLED HIGH-STRENGTH LOW-ALLOY STEELS WITH HIGH AND STABLE PROPERTIES. PART 1. HOT-ROLLED PRODUCTS

摘要

The study on the metallurgical quality of steel, structural state, and mechanical properties of hot-rolled steel was performed on the metal of eight industrial melts. This steel is used for the production of cold-rolled steel of the 340 MPa strength class or grade HC340LA annealed in bell-type furnaces. The results demonstrate the possibility of economical alloying and microalloying of steel and directions for optimizing the smelting, ladle processing, continuous casting, and steel hot rolling technologies.