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High-Purity Fused Quartz Tubing | Custom Heat-Resistant Quartz Piping
High-performance tubing engineered for stability in extreme thermal and chemical environments. Our high-purity fused quartz tubes (SiO2 >= 99.99%) provide exceptional thermal shock resistance and chemical inertness. Ideal for semiconductor diffusion furnaces, laboratory heating elements, and ozone-free UV sterilization systems.
Product Overview
Manufactured from premium high-purity fused quartz, our tubes offer excellent thermal stability, a low coefficient of thermal expansion, and outstanding resistance to chemical corrosion. They are essential components in semiconductor processing, laboratory research, optical systems, and high-temperature industrial manufacturing.
Key Features
- Ultra-high purityfused quartz material (SiO2 >= 99.99%) to prevent process contamination.
- Exceptional thermal shock resistanceallowing for rapid heating and cooling cycles.
- Minimal thermal expansion coefficientensuring superior dimensional stability.
- High optical transparencyand chemical stability (resistant to most acids, excluding HF).
- Precision-engineeredfor high-temperature furnace liners and mission-critical applications.
Technical Specifications
1. Material Grades & Optical Properties
| Grade | Optical Clarity | SiO2 Purity | Application |
| Standard Clear | Transparent | 99.9% | General Lab, Heating Elements |
| High Purity | Optically Clear | 99.99% | Semiconductor, Diffusion Furnaces |
| Opaque / Milky | Translucent | 99.8% | Infrared Heating, Insulation |
| UV Block | Transparent | 99.9% | UV Sterilization (Ozone-free), Lighting |
2. Physical & Thermal Properties
| Property | Value |
| Density | 2.20 g/cm3 |
| Hardness (Mohs) | 5.5 – 6.5 |
| Softening Point | 1730°C |
| Annealing Point | 1210°C |
| Max. Working Temp | 1100°C (Continuous) / 1250°C (Short-term) |
| Thermal Expansion | 5.5 x 10^-7 /°C (Superior Shock Resistance) |
3. Dimensional Capabilities (Customizable)
| Feature | Range / Tolerance |
| Outer Diameter (OD) | 2 mm – 600 mm |
| Wall Thickness (WT) | 0.5 mm – 10.0 mm |
| Length | Up to 3000 mm |
| OD Tolerance | +/- 0.2mm (Standard) / +/- 0.05mm (Precision) |
| End Finishing | Fire Polished, Ground, or Flanged |
Available Types & Applications
Available Configurations:
- Clear fused quartz tubes (Standard & Large Diameter).
- Heavy-walled and thin-walled precision quartz tubing.
- Opaque silica tubes for heat insulation.
- Specialized UV-grade sleeves and ozone-free tubing.
Typical Applications:
- Semiconductor & PV:Diffusion tubes, furnace liners, and wafer carriers.
- Laboratory R&D:Reaction systems, combustion tubes, and gas sampling.
- Thermal Processing:Industrial furnace components and heating element protectors.
- Optics & Analysis:Precision analytical instrument parts and UV lamp sleeves.
- Chemical Industry:High-purity purification and corrosive gas processing systems.
FAQ – Quartz Tubing
Q: Can quartz tubes withstand rapid temperature fluctuations? Yes. Fused quartz features a near-zero coefficient of thermal expansion, providing world-class thermal shock resistance even when moving from extreme heat to cold environments.
Q: Do you offer custom dimensions and processing? Absolutely. We manufacture quartz tubes to your exact drawings, including custom diameters, specific wall thicknesses, and specialized end treatments like flanges or bends.
Q: Which industries rely on your quartz products? Our products are widely utilized in semiconductor fabrication (wafer processing), high-temperature industrial furnaces, and precision laboratory research.
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