“HK” brick is used to build roofs, walls and bullnoses used primarily in the non-ferrous industries such as lead, copper and hazardous–chemical waste incinerators. For non-ferrous furnace applications, our “HK” Construction is available in various grades of magnesite-chrome or high-alumina. This construction allows for quick and easy brick replacement. Worn “HK” brick is simply pulled from outside the furnace and replaced without requiring a shutdown. “HK” Construction can also be used with a rotating casting to accommodate various support-steel conditions.