Without carbon and High strength performace Replace fused alumina by sintered alumina Excellent thermal shock stability It can be used for replace  fused alumina .Compared with   fused alumina ,sintered alumina contains no carbon so it can be  higher strength than  fused alumina .Besides the  thermal shock stability  can be more  excellent . Another point should to mention is the price , lower than   fused alumina  . The fellowing is the basic inforamtion about the  sintered alumina :Al2O3 - 94-95Fe2O3 - max 1.2SiO2 -  max 2.5TiO2 - max 2.5R2O - MAX 0.45B.D.  -  3.25-3.35

sintered alumina