Brown Fused Alumina is bauxite; carbon materials, iron filings in the three kinds of raw material through the melting furnace to restore the system obtained brown artificial corundum, and are thus brown corundum. Brown Fused Alumina is the main chemical ingredient AL2O3, its content is 94.5% 1 97%, and the other containing a small amount of Fe, Si, Ti and so on. Corundum because of its high hardness, toughness is good, more used as a grinding material, which is one of the most basic abrasive. Applicable to carbon steel, malleable iron and hard bronze etc. grinding. In addition, in refractory materials, chemical additives, precision casting and anti-slip material also has wider application.

Item	95	96	97
Al2O3	≥95%	≥96%	≥97%
SiO2	≤1.2%	≤1.0%	≤0.8%
TiO2	≤3.2%	≤3.0%	≤2.0%
Fe2O3	≤0.3%	≤0.2%	≤0.2%
CaO+MgO	≤0.6%	≤0.5%	≤0.4%
Real density	≥3.9 g/cm3
Moh`s hardness	9.0
Micro hardness	2000-2200KG/MM2
Coarseness	8-5MM   5-3MM   3-1MM   1-0MM
	16# 24# 30# 36# 46# 60# 70# 80# 90# 100# 120#
Fines	180F   200F   240F   325F (Fe2O3 ≤0.50%)