Basic Info
Item:Brown Fused Alumina
Origin: Henan,China
HS Code: 2818101000
Product Description
Brown Fused Alumina,also calleded Brown Fused Aluminium Oxide,Brown Aluminum Oxide or Brown Corundum,named by its mainly brown color, is an artificial electro fused corundum obtained from reduced fusion of high quality bauxite together with other raw materials in 2000℃ electric arc furnaces. Bauxite used for producing of BFA contains high Aluminium Oxide(Al2O3). After the fusion process, the materials are mixed and fused into liquid materials, then cooled down and crushed(milled)into lump sizes. The lump sizes are then crushed into finer grades or powders and refined by sieving equipment into materials of different particle distribution for different applications.
BFA Standard Sizes & Applications
Refractory Bricks,Furnace Lining,Crucibles,Pre-Casting,Gunning Material,Refractory Mortars,Refractory Castables:
0-0.2mm,0-0.5mm,0.5-1mm,1-3mm,3-5mm,5-8mm,100mesh,200mesh,325mesh
Typical Particle Distribution(Sieving) and Chemcial Specifications
Physical Specifications | |
Color | Brown |
Grain Shape | Angular or Sharp Edged |
Mosh Hardness | 9 |
Melting Point | 1950℃ |
True Gravity | 3.6g/cm3-4.1g/cm3 |
Bulk Density | 1.5g/cm3-2.2g/cm3 |
BFA Standard Sizes & Applications
Refractory Bricks,Furnace Lining,Crucibles,Pre-Casting,Gunning Material,Refractory Mortars,Refractory Castables:
0-0.2mm,0-0.5mm,0.5-1mm,1-3mm,3-5mm,5-8mm,100mesh,200mesh,325mesh
Typical Particle Distribution(Sieving) and Chemcial Specifications
Typical Particle Distribution | Grit# | MaximumSize | Big Size | Basic Size | Mixed Size | Small Size |
0-1mm | 0 | 6 | ||||
1-3mm | 0 | 6 | 3 | |||
3-5mm | 0 | 6 | 2.5 | |||
5-10mm | 0 | 7 | 2.5 | |||
Typical Chemical Analysis | SiO2 | AL2O3 | Fe2O3 | TiO2 | Fixed Furnace Material | |
0-1mm | 1.38% | 95.19% | 0.16% | 2.22% | ||
1-3mm | 1.34% | 95.21% | 0.17% | 2.15% | ||
3-5mm | 1.36% | 95.23% | 0.14% | 2.18% | ||
5-10mm | 1.37% | 95.35% | 0.15% | 2.19% | ||
SiO2 | AL2O3 | Fe2O3 | TiO2 | Tilting Furnace Material | ||
0-1mm | 1.01% | 95.55% | 0.13% | 2.13% |