The KAS series is MRL’s proven line of chroma–spinel composite bricks, manufactured from industrial chromia-corundum through high-pressure forming and high-temperature firing. The chroma-spinel phase within the matrix provides excellent high-temperature creep resistance, chemical stability, and outstanding slag-corrosion resistance, ensuring structural integrity and volumetric stability under severe conditions such as aggressive slags, alternating redox atmospheres, and thermal shock. KAS bricks are particularly suited for slag lines and critical working zones in non-ferrous smelting furnaces, delivering long, stable, and reliable service life in copper, zinc, and aluminum pyrometallurgical operations.