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  • Name: Black Fused Alumina
  • Code: 1113
  • Time: 2016-05-16
  • Views : 41

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Black Fused Alumina has good features as high hardness, strong tenacity,better bonding ability and hydrophilicity, giving less heat, good self-sharpening, smooth surface and high finish. It's suitable for polishing various spare parts such as:bicycles,sewing-machine,hard metal tools,medical apparatus, timepieces,glass products and stone grinding.It's also the right material for making abrasive tools: fiber- reinforced cutting wheels, grinding wheels, sand cloth, paper and paste.

 

 

 

 

Chemical Composition (% by weight)

Range of Grits

Chemical Composition

Al2O3

   SiO2

 Fe2O3

TiO2

24#-100#

77.00Min

11.0Min

 5.0Min

 1.5-3.5

120#-200#

75-81

9-12

 4-6

2-3

240#-280#

64.0Min

10.0Min

7.0Min

1.5-3.0

 

 

Available grain sizes

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