Bubble Alumina
Product Introduction
Our company's bubble alumina has the characteristics of high purity, bubble walls thin, controllable packing density, good crystallization, more closed pores, and low thermal conductivity.
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Product Details
Bubble alumina
Bubble alumina is made of industrial aluminum oxide after melting and rapid blowing,it is characterized by light weight,closed hole,high temperature resistance.It is the ideal heat insulation filling material for high temperature furnace,and also the high-quality aggregate for high temperature lightweight refractory brick and castable.
Physical Properties and Chemical Composition
| Index | Warranted | Typical | |
Chemical component (%) | AL₂O₃ | ≥99 | 99.34 |
| SiO₂ | ≤0.2 | 0.15 | |
| Fe₂O₃ | ≤0.1 | 0.06 | |
| Bulk density(g/cm³) | 0.5-1.0 | 0.75 | |
| Percentage of broken(%) | ≤15 | 12 | |
| Fire resistance temperature(℃) | 1800 | ||
| Particle size | Φ5-3-2-1-0.5-0.2-0.1mm | ||
| Inspection standard | GB/T3044-89 | ||
| Application | High temperature lightweight castable and high temperature furnace insulation filler | ||
| Packing | 25KG/small bag,1000KG/jumbo bag(can be customized according to customer requirements) | ||
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Bubble Alumina
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