Black Aluminum Oxide

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