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Specification

Common?Ceramic?Ball

Inert?Ceramic?Ball

Medium?Alumina?Ball

High?Alumina?Ball

99%?Alumina?Ball

Al2O3?+?SiO2?(%)

>93

>92

>93

>94

>99

Al2O3?(%)

17-23

23-30

47-56

90-93

99

Fe2O3?(%)

<1

<1

<1

<1

<1

CaO?(%)

<0.5

<1.5

<2

<4

0.2

MgO?(%)

<0.5

<2.5

<0.5

<0.5

0.1

K2O?+?Na2O?(%)

<4

<4

<3.5

<4

>0.5

TiO2

?

<0.5

<0.1

<0.1

0.5

Leachable?Iron?(%)

?

<0.1

<0.001

<0.001

?

Water?Absorption?(%)

<0.5

<0.2

<2

<3

2.0-6.0

Bulk?Density?(g/cm3)

1.35-1.40

1.35-1.40

1.35-1.45

1.8-2.0

1.8-2.0

Operation?Temp.?max.

>1100

>1100

1480

1760

?

Mohs?Hardness?(scale)

>6.5

>7

>7

>7

>7.5

Crush?Strength

KN/particle

1/4?inch?(6mm)

>0.5

>0.54

>0.56

>0.44

>1

1/2?inch?(13mm)

>1.5

>1.67

>1.56

>1.99

>3

3/4?inch?(19mm)

>4.15

>4.21

>2.89

>3.21

>5

1?inch?(25mm)

>6.07

>6.22

>4.89

>5.33

>8

1-1/2?inch?(38mm)

>8.52

>8.92

>5.33

>5.28

>8

2?inch?(50mm)

>9.7

>9.8

>6.22

>8

>15