Specification

Common Ceramic Ball

Inert Ceramic Ball

Medium Alumina Ball

High Alumina Ball

Pure 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. °C

>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