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Brown Fused Alumina
Brown Fused Alumina

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renovate the crack on the surface and interior of crystal and then to improve the toughness and durability of the grains.

AF-17HG

It is one kind of Brown Aluminium Oxide grains with blocky grain shape and high bulk density. To get this kind of product, we calcine the regular grains at a high temperature to give a blue colour, the purpose is to renovate the crack on the surface and interior of crystal and then to improve the toughness and durability of the grains.
As an abrasive, the AF-17HG is mainly used in making vitrified and organic bonded grinding wheels for working in heat sensitive metals and alloys.

Typical Chemical Analysis

Al2O3

Fe2O3

TiO2

SiO2

CaO

95.84%

0.06%

2.40%

0.93%

0.23%

Physical Properties

Color

Blue

Shape

Blocky, tough and sharp

Crystal Form

Alpha-alumina trigonal system

True Specific Gravity

3.96 g/cm3

Hardness

2090 Knoop scale; 9.0 Mohs scale

Melting Temperature

About 2250 °C

Magnetic Material

0.0076%

Toughness

63.17

Hydrophilic

75.00

Bulk Density Test Value (g/cm3)

Grit No

F12

F14

F16

F20

F22

F24

F30

F36

F40

F46

B.D

1.98

1.97

1.96

1.91

1.91

1.91

1.90

1.85

1.80

1.80

Grit No

F54

F60

F70

F80

F90

F100

F120

F150

F180

F220

B.D

1.75

1.75

1.75

1.74

1.73

1.73

1.73

1.70

1.69

1.64

Grit Size Available (F)

8

12

14

16

20

22

24

30

36

40

46

54

60

70

80

90

100

120

150

180

220

 

 

 

 

 

 

 

 

 

 

 

Particle Size Distribution (PSD)

PSD According to ISO, ANSI, FEPA and JIS.

Packing Way Selection

a. In 25kg plastic woven bags.

b. 40 x 25kg plastic woven bags on pallet.

c. 40 x 25kg paper bags on pallet.

d. According to client’s special requirement.

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