Brown Corundum

Brown Fused Alumina, or BFA, is a material produced from high-quality bauxite and other raw materials. It is manufactured through a complex process of fusion in electric arc furnaces at high temperatures. The resulting material is a hard and tough abrasive that is suitable for a wide range of industrial applications.

Usage	Size		Main Chemistry %				M.I. %
Usage	Size		Al₂O₃	Fe₂O₃	SiO₂	TiO₂	M.I. %
Abrasives	F	4#—80#	≥95	≤0.3	≤1.5	≤3.0	≤0.05
		90#—150#	≥94	≤0.3	≤1.5	≤3.0	≤0.03
		180#—240#	≥93	≤0.3	≤1.5	≤3.5	≤0.02
	P	8#—80#	≥95.0	≤0.2	≤1.2	≤3.0	≤0.05
		100#—150#	≥94.0	≤0.2	≤1.2	≤3.0	≤0.03
		180#—220#	≥93.0	≤0.3	≤1.5	≤3.5	≤0.02
	W	1#-63#	≥92.5	≤0.5	≤1.8	≤4.0	—

Usage	Size		Main Chemistry %				M.I. %
Usage	Size		Al₂O₃	Fe₂O₃	SiO₂	TiO₂	M.I. %
Abrasives	F	4#—80#	≥95	≤0.3	≤1.5	≤3.0	≤0.05
		90#—150#	≥94	≤0.3	≤1.5	≤3.0	≤0.03
		180#—240#	≥93	≤0.3	≤1.5	≤3.5	≤0.02
	P	8#—80#	≥95.0	≤0.2	≤1.2	≤3.0	≤0.05
		100#—150#	≥94.0	≤0.2	≤1.2	≤3.0	≤0.03
		180#—220#	≥93.0	≤0.3	≤1.5	≤3.5	≤0.02
	W	1#-63#	≥92.5	≤0.5	≤1.8	≤4.0	—

Description

Brown Fused Alumina is made from high quality bauxite by fusing in an electric arc furnace at high temperature. It has good toughness and high hardness. It is suitable for manufacturing of Vitrified and Resin Bonded Abrasives, Coated Abrasives, for lapping, Polishing and Sandblasting.

The abrasive tools made of brown aluminum oxide are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze etc.

Brown Fused Alumina for Abrasives can be divided into two kinds:

(1) For bonded Abrasives:BFA-01 (with Medium Density)and BFA-02 (with High Density);

(2) For Coated Abrasives:

We can also produce medium (1050C) and high (1350C) tempreture calcined Brown Fused Alumina and Coated BFA.