Chemshun alumina ceramic blocks are designed with tongues and grooves for use in pipe lining and ceramic rubber plates. They have high hardness, superior abrasion resistance, and resistance to corrosion and chemicals. The blocks can be used in industrial abrasion applications and are commonly used as wear liners in equipment like hoppers, cyclones, chutes, separators, bunkers, impellers, agitators, and fan blades due to their excellent abrasion and impact resistance when welded to steel surfaces.