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High-Quality Heat Resistant Quartz Lamp Holders for Industrial Use - China Suppliers & Factory
Technical Specifications
| Mechanical Behavior | Standard Values |
|---|---|
| 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 | 2 MM – 20 MM |
Frequently Asked Questions
Q
What is the maximum operating temperature for quartz glass?
Quartz glass can withstand a short-term use temperature of up to 1300 °C and a long-term use temperature of up to 1100 °C, making it highly suitable for high-temperature industrial applications.
Q
What material is used to manufacture this quartz glass?
The quartz glass is made from Silicon Dioxide (Natural Quartz), offering a transparent or colorless appearance with no air bubbles or surface lines for superior optical clarity.
Q
What thickness options are available for the quartz glass?
The quartz glass is available in a thickness range of 2 mm to 20 mm, accommodating a variety of custom application requirements across different industries.
Q
What is the thermal expansion coefficient of this quartz glass?
The quartz glass has an exceptionally low thermal expansion coefficient of 5.5 × 10⁻⁷ cm/cm·°C, which ensures excellent dimensional stability under significant temperature fluctuations.
Q
What PPM purity grades are available for the quartz glass?
The quartz glass is available in controlled purity grades of 10 PPM, 20 PPM, and 100 PPM, allowing customers to select the appropriate purity level based on their specific technical and industrial requirements.
Q
What is the compressive strength and hardness of this quartz glass?
The quartz glass exhibits a high compressive strength of 1100 MPa and a Mohs hardness ranging from 5.5 to 6.5, demonstrating excellent mechanical durability and resistance to surface scratching and deformation.

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