Improving the quality of a long product high-strength HS of grad steel AISI 1080: Thermomechanical optimization and valorization

This study aims to develop a tool to validate the use of crude unalloyed steel for heat treatment instead of low-alloy steel, optimizing energy and ferroalloy use for producing HS-grade products. The tool will provide reliable guidance during process development for hot rolling at the LRB Sider mill. Improving rolled product quality requires analyzing processes while considering thermal and mechanical interactions. Focusing on mid-carbon AISI 1080 (C80 eutectoid) steel, the study examines hot deformation mechanisms and the effects of thermomechanical coupling on yield stress. This grade, valued for its hardness and wear resistance, is widely used in high-strength bars, wires, bolts, and spare parts for Sider units. Deliverables include proposing rolling parameters for thermomechanical processing and developing a new high-strength long rolled product.