High Purity Black Aluminium Oxide Price 99.5% Aluminium Oxide Powder
Specifications
aluminium oxide powder1.Own bauxite mineral, assure the steady raw material
2.new technique for cleanness
3.long toughness
High purity black aluminium oxide price 99.5% aluminium oxide powder
aluminium oxide powder
Introduction
Black Fused Alumina is also known as low aluminum corundum. It is also a new type product of polishing material, and it is a dark gray crystal body made Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite. It has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability
Applications
For Free grinding, such as glass industry
For non-slip of airport and road, chemical factory board paving
For Produce ceramic grinding wheel, resinoid grinding wheel, Grinding stone,
For free grinding, such as coarse grinding before electroplating products .
For polishing and sandblasting of stainless steel, fabricated metal products .
For investment casting technics of stainless steel and aluminum casting in coating .
For sand paper, sand cloth, sand belt, polish wax, abrasive paste, coating etc..
For abrasion and high temperature resistant in steel metallurgy, various industrial stoves
For various material workpieces to decontaminate, prevent corrosion, remove oxide skin
Specifications
Item |
Al2O3 |
Fe2O3 |
SiO2 |
Grade A |
85 % |
9 % |
≤ 6 % |
Grade B |
80 % |
10 % |
≤ 10 % |
Hardness (mohs ) |
≥ 90 |
Melting point (°C) |
2050 |
True density (g/cm3) |
≥ 3.50 |
Linear expansion coefficient |
7-9 |

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