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Calcined Alumina Typical Value
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Calcined Alumina Typical Value 

Type

Chemical Composition

Physical Characteristics

AL2O3

%

Na2O

%

SiO2

%

Fe2O3

%

α-AL2O3

%

BET,m2/g

D50,μm

Calcined alumina for refractories 

AL-800G

99.7

0.05

0.1

0.03

96

0.9

3±0.5

AP-9FG

99.6

0.15

0.1

0.03

95

0.8

3.5±0.5

AP-2G

99.5

0.2

0.1

0.04

94

2

4±0.5

AM-5G

99.3

0.35

0.1

0.04

93

1

5±0.5

Active alumina for refractories 

AL-370

99.7

0.05

0.15

0.03

97

3

2.5±0.5

AL-1SG

99.6

0.05

0.15

0.03

96

7.5

1±0.5

AL-2SG

99.6

0.15

0.15

0.03

95

4

1.6±0.5

AM-2SG

99.4

0.25

0.15

0.04

94

4

1.5±0.5

Calcined alumina for  building ceramics 

AM-1G

99

0.3

0.15

0.03

90

4

1±0.5

AM-2G

98

0.35

0.15

0.03

91

2

1.5±0.5

AM-3G

99

0.35

0.15

0.03

92

1.5

3±0.5

AM-4G

99

0.35

0.15

0.03

93

1

4±0.5

Calcined alumina for  electronic ceramics 

AL-8B

99.7

0.03

0.04

0.03

96

0.7

 

AL-20

99.7

0.04

0.03

0.03

96

0.7

 

AL-30B

99.8

0.03

0.03

0.02

97

0.6

 

AL-40

99.7

0.05

0.03

0.03

95

0.8

 

AL-50B

99.8

0.02

0.03

0.02

98

0.3

 

Calcined alumina for  wear resistant ceramics 

AL-10

99.8

0.05

0.05

0.03

95

3

 

AL-10B

99.7

0.08

0.04

0.03

95

1

 

AP-20

99.7

0.15

0.03

0.03

94

2

 

AM-30

99.6

0.25

0.05

0.03

93

2

 

AM-40

99.5

0.35

0.04

0.04

92

1.5

 

Calcined alumina for  grinding and polishing 

AL-5G

99.6

0.05

0.15

0.03

95

1.5

5±0.5

AM-1SG

99.5

0.25

0.2

0.04

94

1.5

1±0.5

AM-2FG

99.4

0.25

0.2

0.05

93

2

2±0.5