Case Studies in the Use of Agglomeration by Extrusion in the Steel Industry is presented by Mac Steele, J.C. Steele & Sons. Recovery and recycling of iron-containing byproducts long been a topic of interest in the steel industry. In many cases the byproducts are in the form of fines or sludges, making direct use in metallurgical vessels challenging. Various forms of agglomeration have been used to recover these materials for use in blast furnaces, rotary hearth installations, and steelmaking furnaces. This presentation will review a number of case studies in the steel industry where extrusion is used to effectively and efficiently agglomerate byproduct materials into a valuable, usable product.