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80% Al2O3 Black Fused Alumina Abrasive Materials

1.Yannuo Black Fused Alumina is good material for grinding, polishing, sandblasting and making resin bonded abrasives.
2.Yannuo Black Fused Alumina is characteristic with high purity and good toughness.
3.Yannuo is on the position to provide free sample, favorable price and fast delivery.
4. Yannuo is available to produce under JIS, FEPA, ANSI, and International ISO standard. We are also available to manufacture as clients special requests.

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Product Details

80% Al2O3 Black Fused Alumina Abrasive Materials

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                                             F36                                                                                               F20

Black Fused Alumina Introduction:
Black fused alumina is also called black aluminum oxide or black corundum. It is a new type of polishing materials. It is a dark gray crystal, melted in electric arc furnaces by using the bauxite as its raw material. Black fused alumina is characterized by low Al2O3 and a certain amount of Fe2O3 (10% more or less) content, so it has characteristics of moderate hardness, high toughness, high-temperature resistance, and stable thermal stability. It is mainly suitable for free grinding, such as coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products, optical glass, and it is also new abrasive for manufacturing resin grinding wheel, cut-off wheels and emery cloth. The black fused alumina of concentrated basic tablets, with the characteristics of strong cutting power, high toughness, high flexibility, good abrasion resistance and high working efficiency, which is the best product for grinding and polishing, sandblasting stainless steel products.


Black Fused Alumina Chemical Analysis:

Specifications

Main Chemical Composition %

Al2O3

Fe2O3

SiO2

TiO2

BA—1

81-85

6-9

5-8

2-4

BA—2

75-80

9-12

8-10

4-6


Black Fused Alumina Physical Properties:

Item

Indicators

Color

Black

Crystal

Trigonal system

Hardness (Mohs)

≥ 9.0

Melting point (°C)

2050

The maximum temperature (°C)

1850

True Density (g/cm3)

≥ 3. 50

Linear expansion coefficient (0-1600 °C)

7-9


Black Fused Alumina Applications:

• For abrasives, such as ceramic grinding wheels, resin grinding wheel, sandpaper, abrasive cloth, abrasive belt, etc.
• For anti-slip road surface preparation
• Polishing and sandblasting of stainless steel
• Refractory materials in high-temperature resistance in steel metallurgy

Black Fused Alumina Available Grain Size:

Grit No.

Micron

Grit No.

Micron

Grit No.

Micron

10

2360 ~ 2000

30

710 ~ 600

80

212 ~ 180

12

2000 ~ 1700

36

600 ~ 500

90

180 ~ 150

14

1700 ~ 1400

40

500 ~ 425

100

150 ~ 125

16

1400 ~ 1180

46

425 ~ 355

120

125 ~ 106

20

1180 ~ 1000

54

355 ~ 300

150

106 ~ 75

22

1000 ~ 850

60

300 ~ 250

180

90 ~ 63

24

850 ~ 710

70

250 ~ 212

220

75 ~ 53


Packaging:
1M/T big bag or 25kgs bag, Pallet available


Our Advantages:
1.Professional manufacturer, more than 20 years experiences
2.Ensure clients stable quality
3.Having our own testing laboratory which guarantees products quality
4.Available to deliver samples to clients before place an order. Trail order for testing is also workable.
5.Production capacity: over 40, 000 tons per year.

6.Available to customize according to clients specifications.


Welcome to buy the 80% al2o3 black fused alumina abrasive materials with our professional manufacturers and suppliers in China. Our abrasive & refractory material products for sandblasting and coated and bonded abrasives comes in high quality and low price. Check the quotation and get the free sample now.

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