Brown Aluminum Oxide

It is fused with first-class raw materials and 2×3200KVA tilting furnace, used to grind metals of high-tensile strength such as steel, annealed malleable iron and hard bronze. It can also be used as high-class refractory.

Brown_Aluminum_Oxide1Browm aluminum oxide is electrically fused in an arc furnace from a mixture of bausite at high temperature.It has browm color,high hardness and great toughness.The abrasive tools made of brown aluminaum oxide are suitable for grinding carbon steel,normal alloy steel,malleable cast iron and hard bronze.It used for refractory aluminum oxide lining mixture,pouring materails castalbe,etc.

Note: Special requirement on chemical composition can be satisfied through discussion.

Symbol
Range of the grain
Chemical properties(%)
CaO Typical Value
Refractory℃
True density
Grain Shape
Toughness
AI2O3
SiO2
TiO2
Fe2O3
CaO
A
F12-150
95-97.5
≤1.20
1.50-3.80
≤0.25
≤0.45
0.25
--
≥3.90
Equaled Volume
--
F180-220
93-97.2
A-A
F12-150
95-97.5
≤1.00
1.50-3.80
≤0.25
≤0.45
0.25
800-1000
≥3.90
Equaled Volume
Great
F180-220
93-97.2
A-B
F12-150
91-93
≤1.20
1.50-4.20
≤2.50
≤0.45
0.20
--
≥3.90
Equaled Volume
--
F180-220
≥91
A-P1
F12-150
95-97.5
≤1.00
1.50-3.80
≤0.25
≤0.45
0.25
--
≥3.90
Equaled Volume
Needle form
Great
F180-220
93-97.5
A-P2
F16-120
≥91
≤2.50
1.50-4.20
≤0.50
≤0.45
0.25
--
≥3.20
Needle Form
--
F150-220
≥90


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