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| Property / Specification | Standard Values & Parameters |
|---|---|
| Density | 2.2 g/cm³ |
| Compressive strength | 1100 Mpa |
| Flexural strength | 67 Mpa |
| Poisson's ratio | 0.14 ~ 0.17 |
| Young's modulus | 72000 Mpa |
| Modulus of rigidity | 31000 Mpa |
| Mohs hardness | 5.5 ~ 6.5 |
| Transformation point | 1280 °C |
| Softening Point | 1780 °C |
| Annealing point | 1250 °C |
| Specific heat (20 ~ 350 °C) | 670 J/kg·°C |
| Thermal conductivity (20 °C) | 1.4 W/m·°C |
| Index of refraction | 1.4585 |
| Low thermal expansion coefficient | 5.5 × 10⁻⁷ cm/cm·°C |
| Thermal processing temperature | 1750 ~ 2050 °C |
| Short-term use temperature | 1300 °C |
| Long-term use temperature | 1100 °C |
| Material | Silicon Dioxide (Natural Quartz) |
| Color | Transparent or colorless |
| Surface | No Air Bubble, no line |
| Strain | 1270 °C Fused The Quartz Glass Brick |
| PPM grade | Controlled 10/20/100 PPM |
| Shape | Circle |
| Thickness | 2MM - 20MM |
This quartz glass can withstand temperatures up to 1300°C for short-term use, and has a recommended continuous long-term use temperature of 1100°C.
The material features a Mohs hardness of 5.5 to 6.5, a compressive strength of 1100 Mpa, and a flexural strength of 67 Mpa.
It exhibits a very low thermal expansion coefficient of 5.5*10-7 cm/cm.°C, ensuring excellent thermal shock resistance.
The quartz glass is supplied in a circular shape with a thickness ranging from 2MM up to 20MM.
The PPM grade is tightly controlled at 10/20/100 PPM. The surface is transparent, colorless, and guaranteed to have no air bubbles or lines.
The transformation point is 1280°C, softening point is 1780°C, annealing point is 1250°C, and thermal processing takes place between 1750°C and 2050°C.
