Effect of Cu Additions on Scale Structure and Descaling Efficiency of Low C Steel Reheated in a Combustion Gas Atmosphere

Abstract Modern EAF steelmaking employs scrap as its primary source of raw material. Different sources have varying levels residuals, which can negatively influence product properties, performance, and surface quality. The presence some such Cu Ni in controlled quantities, also positively impact steel performance for applications. It is well known that interactions between residuals alloying elements modify the structure scale formed during slab reheating prior to hot rolling. These changes removability. In this study, effect concentrations a low alloyed Mn Si containing was examined investigate on Laboratory studies were performed with simulated descaling conditions mimic used industrial practices. combustion atmosphere investigated using SEM/EDX analysis. A special laboratory water jet device evaluate removability at three different hydraulic factors. results showed significantly modified formed, particularly internal layers, affected applied effects level factor discussed.