45/100, D60/100HD & D60/100 C5 | Magnesia Chrome Bricks Materials: 100% reconstituted fused grain magnesia chrome brick with or without chromic oxide enrichment. Description: Developed for base metals smelting furnaces (EAF and six in line). Other applications are TBRC, TSL, flash furnaces. Follow us on LinkedIn for more. View our full product list here.