Alumina (corundum) fused cast products of KEL grades are used in the glass industry as well as in the ferrous and nonferrous metal sectors. The grade KEL-93 containing 93 wt % alumina is used as lining of holding zone bottoms of reheating furnaces. The grade KEL-95 contains 95 wt % alumina. This grade is used in glass melting furnaces for lining the working ends and feeder channels.
