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Quartz Crucible for Fire Bowl
Description
Quartz crucible has the advantages of high purity, high temperature resistance, high dimensional accuracy, energy saving, stable quality, etc. Widely used in industry and laboratory. Product purity SiO2>99.99%, softening point temperature about 1730°C, long-term use temperature 1100°C, short-term maximum 1450°C.
Specifications
| Purity | SiO2 > 99.99% |
| Density | 2.2 g/cm3 |
| Micro Hardness | 8600~9800 N/mm2 |
| Moh's Hardness | 5.5~6.5 |
| Softening Point | 1730°C |
| Bending Strength | 67 N/mm2 |
| Tension Strength | 48 N/mm2 |
| Dielectric Constant | 3.7 |
| Compression Strength | 1100 N/mm2 |
| Long-term Use Temperature | 1100°C |
| Short-term Max Temperature | 1450°C |
| Insulating Strength (20°C) | 250~400 KV/mm |
| Electrical Resistivity (350°C) | 7×10^7 ohm-cm |
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