Fused ceramic sand, also called as ceramic Foundry Sand, is kind of man-made spherical shape ceramic particles featured by high refractoriness, low thermal expansion made by spraying melted from the fused bauxite. It provides a simple and efficient way in the foundry industry to improving the quality of the castings, reducing the production cost, and avoiding environmental pollution so it is much better than silica sand. And it is also a good substitution for Chromite sand and Zircon sand because of its lower price
Grain type | ball, spherical |
Angularity | 1.1 max, similar to ball |
Bulk density | 1.95-2.05 g/cm3 |
Refractoriness | 1790℃ |
Thermal expansion | 0.13% (10 min at 1000 C ) |
Size | Available in all models, it can also be customized |
Content | |
Al2O3 | 70-75% |
SiO2 | 8-20% |
Fe2O3 | ≤ 3% |
TiO2 | ≤ 3.5 % |
CaO | ≤ 0.45 % |
MgO | ≤ 0.35 % |
K2O | ≤ 0.33% |
Na2O | ≤ 0.08 % |
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