High-temp fused quartz windows. 1200°C resistant, >90% UV transmission. Ideal for harsh environments. Request samples!
| Material | Quartz Glass |
|---|---|
| Standard | Working temperature up to 1200℃ |
| Size | Diameter 10-420mm |
| Thickness | 1-30mm |
| Edge | Grind or Polish |
Material: quartz glass
Maxium working temperature: 1200 °C.
Working pressure: Depends on diameter and thickness.
Diameter: 10-420mm.
Thickness: 1-85mm
Quartz glass technique specification:
| Chemical Performance | ||
| 1 | SiO2 | 99% |
| 2 | Water resistance | ISO0719 I |
| 3 | Acid resistance | ISO0195 I |
| 4 | Alkali resistance | ISO0695 I |
| Mechanical Performance | ||
| 5 | Density ρ | 2.2g/cm3 @24℃ |
| 6 | Bending Strength | 68N/mm2 |
| 7 | Tensile stress | 50N/mm2 |
| 8 | Young’s modulus | 68 Mpa |
| 9 | Poisson’s ratio | 0.17 |
| 10 | Hardness | 7 Mohs |
| 11 | Elastic Modulus | 7.5 104N/MM2 |
| Thermodynamic Performance | ||
| 12 | Thermal Expansion Coefficient (0-300℃）(20-300) | 0.55*10-6K-1 |
| 13 | Softening Point | 1730±10℃ |
| 14 | Strain Point | 1054±10℃ |
| 15 | Annealing Point | 1204±10℃ |
| 16 | Thermal Shock Resistance | 500K |
| 17 | Max Working Temperature | ≤1700℃ Short time (＜10h） |
| 18 | Max Working Temperature | ≤1200℃ Long time (＞10h） |
| Eletric Property | ||
| 19 | Electric Volume Resistivity | 1018Ωxm (at 20℃） 1010Ωxm (at 400℃） 6.3×10 6Ωxm (at 800℃） 1.3×10 5Ωxm (at 1200℃） |
| 20 | Dielectric strength | 25-40KV/mm (at 20℃） 4-5KV/mm (at 20℃） |
| 21 | Dielectric Constant εr | 3.7 (at 7.5GHz, 20℃） |
| Optical Property | ||
| 22 | Refractive Index | 1.458 @24℃ |
Light Transmission
High-Performance Fused Quartz Windows for Demanding Applications
Our fused quartz windows are precision-engineered from 99.9% pure silica (SiO₂), offering exceptional optical clarity and unparalleled durability in extreme environments. These windows combine superior thermal stability with excellent UV transmission, making them ideal for specialized industrial, scientific, and technical applications.
✔ Extreme Temperature Resistance
Continuous service up to 1200°C (short-term to 1450°C)
Near-zero thermal expansion (5.5×10⁻⁷/°C) prevents cracking under rapid temperature changes
✔ Superior UV Transparency
90% transmission from deep UV (190nm) to near-infrared (2500nm)
Ideal for UV lithography, sterilization, and laser applications
✔ Exceptional Chemical Resistance
Highly resistant to acids (except HF), alkalis, and corrosive gases
No degradation from moisture, solvents, or oxidizing agents
✔ Optical Clarity & Precision
Low bubble/impurity content for distortion-free viewing
Custom diameters (10-600mm) and thicknesses (0.5-50mm) available
Optional AR coatings, laser-grade polishing, or metalized edges
Semiconductor & solar equipment
UV curing & sterilization systems
High-power laser optics
Chemical process observation ports
Aerospace & defense instrumentation
Quality Assurance:
Custom fabrication & OEM solutions available
Rigorous inspection for bubbles, striae, and surface defects
Request technical datasheets or samples today to experience the premium quality of our fused quartz windows!
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