CREATION OF AN EFFECTIVE TECHNOLOGY FOR THE PRODUCTION OF COLD-ROLLED HIGH-STRENGTH LOW-ALLOY STEELS WITH HIGH AND STABLE PROPERTIES. PART 2. COLD-ROLLED PRODUCTS

摘要

The structural state and mechanical properties of cold-rolled steel of strength class 340 MPa or grade HC340LA of the current production, annealed in bell-type furnaces, were examined on the metals of eight industrial melts. The results demonstrate the expediencies of using an economical alloying and microalloying system and optimizing the technologies for smelting, hot and cold rolling, and recrystalli-zation annealing of steel.