Quartz Furnace Tube
Oversized Quartz Tube
Quartz Boat
Quartz Plate
Quartz Lamp Holder
Quartz Rod
Quartz Ring
Customized Quartz Products
Hot Products
0102030405
High-Temperature Resistant Quartz Lamp Holders from China Suppliers - Reliable Factory for Industrial Use
📊
Key Performance Highlights
🔬
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
Q
What is the maximum operating temperature for fused quartz glass?
Fused quartz glass can withstand a short-term use temperature of up to 1300°C and a long-term continuous use temperature of up to 1100°C. Its softening point is as high as 1780°C, making it one of the most thermally stable optical materials available.
Q
What makes fused quartz glass different from ordinary glass?
Unlike ordinary glass, fused quartz is made from pure Silicon Dioxide (SiO₂) derived from natural quartz. It offers an exceptionally low thermal expansion coefficient (5.5 × 10⁻⁷ cm/cm·°C), extremely high purity (down to 10 PPM), and superior thermal and mechanical performance that standard glass cannot match.
Q
What thickness options are available for fused quartz glass?
Fused quartz glass is available in a thickness range of 2 mm to 20 mm. Custom thicknesses within this range can be produced depending on the specific application requirements, such as optical windows, semiconductor processing, or high-temperature furnace components.
Q
What PPM purity grades are available?
Our fused quartz glass is available in controlled purity grades of 10 PPM, 20 PPM, and 100 PPM. Higher purity grades (lower PPM) are typically selected for semiconductor manufacturing, laboratory instruments, and precision optical applications where contamination control is critical.
Q
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 direct result of the amorphous, highly cross-linked SiO₂ network structure. This property makes fused quartz highly resistant to thermal shock — it can be heated to high temperatures and quenched in water without cracking, unlike most other glass types.
Q
Is fused quartz glass suitable for optical applications?
Yes. With an index of refraction of 1.4585 and a transparent, colorless surface free of air bubbles and lines, fused quartz glass delivers excellent optical clarity. It transmits a broad spectrum of light including UV, visible, and near-infrared wavelengths, making it ideal for lenses, windows, prisms, and laser optics.