Product Information
- Fused Silica
Information
Fused Silica has an extremely low thermal expansion and a low thermal conductivity, therefore it is an excellent refractory raw material for the glass industry and for steel continues casting refractories. Fused Silica is produced by fusing natural high purity quartz sand.
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Origin (local):
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China
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Production process:
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Fusion in electric arc furnaces
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Packing:
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Big bags
Bags
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Special properties:
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Low thermal expansion
Low thermal conductivity
High purity
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Specification
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Chemical analysis A grade:
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| SiO2
| Min. |
99.8% |
| AL2O3
| Max. |
0.02% |
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| Fe2O3 |
Max. |
0.01% |
| Na2O |
Max. |
0.005% |
| TiO2 |
Max. |
0.002% |
| K2O |
Max. |
0.002% |
| CaO |
Max. |
0.002% |
| MgO |
Max. |
0.002% |
| Crystallinity
(Quartz+Tridymite+Cristoblite) |
Max. |
0.1% |
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Chemical analysis C Grade:
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| SiO2
| Min. |
99.0% |
| AL2O3
| Max. |
0.08% |
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| Fe2O3 |
Max. |
0.06% |
| Na2O |
Max. |
0.02% |
| TiO2 |
Max. |
0.02% |
| K2O |
Max. |
0.02% |
| CaO |
Max. |
0.06% |
| MgO |
Max. |
0.02% |
| Crystallinity
(Quartz+Tridymite+Cristoblite) |
Max. |
0.1% |
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Specific weight:
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2.21 g/cm3
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