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Description

Description of Refractory Ball:


With strong heat storage capacity, refractory balls not only have high temperature resistance, high crushing strength, high refractoriness under load, but also have good peeling resistance, good thermal shock resistance and excellent creep resistance.


Technique Data

Technique Data of Refractory Ball:

Item

Specification


High Alumina

Mullite

Corundum Mullite

Corundum

Zircon

Al2O3  %

60~65

65~75

75~85

88~90

65~80

Fe2O3  %

1.5

1.2

1.0

1.0

2~8(ZrO2)

Bulk Density, g/cm3

2.0~2.3

2.3~2.5

2.5~2.8

2.8~3.1

2.7~3.1

Apparent Porosity, %

20~22

20~22

18~22

18~20

20~22

Cold Crushing Pressure, KN

9

11

18

26

28

Stacking Density, kg/m3

1400~1500

1400~1600

1500~1650

1650~1800

1700~1800

Specific Surface Area, m2/m3

200~220

Thermal Expansion Coefficient, ×10-6/

5.0

5.5

6.0

7.0

6.0

Specific Heat Capacity Reference Value,

×103J/(kg·K)

1.1

1.1

1.2

1.3

1.2


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