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High-Temperature Resistant Quartz Lamp Holders from China Suppliers - Factory Direct for Industrial Lighting Solutions
🌡️
1780°C
Softening Point
⚙️
1100 MPa
Compressive Strength
🔬
2.2 g/cm³
Density
💎
5.5 – 6.5
Mohs Hardness
📐
2 – 20 mm
Thickness Range
🔆
1.4585
Index of Refraction
📋
Full Mechanical & Physical 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 | 72,000 MPa |
| Modulus of Rigidity | 31,000 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 Quartz Glass Brick |
| PPM Grade | Controlled 10 / 20 / 100 PPM |
| Shape | Circle |
| Thickness | 2 mm – 20 mm |
❓
Frequently Asked Questions
Q1
What is the maximum operating temperature of this fused quartz glass?
The fused quartz glass has a short-term use temperature of up to 1300°C and a long-term use temperature of 1100°C. Its softening point reaches 1780°C, making it suitable for high-temperature industrial applications.
Q2
What is the raw material used to make this quartz glass?
The glass is made from Silicon Dioxide (SiO₂) sourced from natural quartz. It is transparent or colorless with a surface free of air bubbles and lines, ensuring optical clarity and structural integrity.
Q3
What thickness options are available for the quartz glass?
The quartz glass is available in thicknesses ranging from 2 mm to 20 mm, offered in a circular shape. Custom thickness within this range can be accommodated based on specific project requirements.
Q4
What PPM purity grades are available for this quartz glass?
The quartz glass is available in controlled purity levels of 10 PPM, 20 PPM, and 100 PPM. These grades allow customers to select the appropriate purity level for semiconductor, optical, or high-temperature industrial applications.
Q5
Why does fused quartz glass have such a low thermal expansion coefficient?
The extremely low thermal expansion coefficient of 5.5 × 10⁻⁷ cm/cm·°C is a result of the amorphous, non-crystalline structure of fused silica. This property minimizes dimensional changes under thermal stress, making it ideal for precision applications in optics and semiconductor manufacturing.
Q6
How does the compressive strength of this quartz glass compare to standard glass?
With a compressive strength of 1100 MPa, this fused quartz glass significantly outperforms standard soda-lime glass, which typically ranges from 700–900 MPa. Combined with a Young's Modulus of 72,000 MPa and a Mohs hardness of 5.5–6.5, it offers excellent mechanical durability for demanding environments.