Technical data:
Model: | ZC 75 | |||
Color: | White | |||
Shape: | Ball | |||
Typical Technical Composition | Min. % | Min. % | Max. % | Usual % |
SiO2 | ****** | ****** | 4 | 2 |
Al2O3 | 75 | 70 | 73 | 70.8 |
Fe2O3 | ****** | ****** | 0.3 | 0.02 |
TiO2 | ****** | ****** | 0.1 | 0.02 |
CaO | ****** | ****** | 4 | 1.50 |
MgO | ****** | ****** | 0.1 | 0.05 |
Na2O | ****** | ****** | 0.25 | 0.1 |
K2O | ****** | ****** | 0.2 | 0.13 |
Physical properties | ||||
Index | Value | Value | ||
Leachable Iron | ≤ 0.01% | |||
Apparent Porosity by Weight | ≤ 7.0% | |||
Moh's Hardness Scale | >8.0 | |||
Water Absorption | <4.0wt.% | |||
Acid Resistance | >99.8% | |||
Thermal Conductivity | 0.7-0.8 w/m2 .k | |||
Thermal Expansion @ 500 | 0.10% | |||
Thermal Shock Stability, 1000 then water cooling | 10 times | |||
Max. Operating Temperature | 1450°C | 2822 | ||
Specific Density | 3.2g /cm3 | 212 lb /ft3 | ||
Bulk Density (Packing Density) | 1.9 g /cm3 | 125 lb /ft3 |
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