Fused Quartz Rod | Properties & Uses-sara

High-Purity Fused Quartz Rod: Key Properties & Industrial Applications

High-purity fused quartz rod is manufactured from silicon dioxide (SiO₂) with purity up to 99.99%. It stands out among advanced glass materials thanks to its unique combination of thermal, optical, chemical and electrical properties.

✅ Core Performance Features

• Outstanding heat resistance: Continuous working temperature up to 1100°C, short-term peak resistance to 1450°C; ultra-low thermal expansion coefficient delivers remarkable thermal shock resistance, and it can withstand rapid temperature changes without cracking.
• Broad-spectrum optical transmission: Excellent transmittance covering deep UV, visible and near-infrared bands (120 nm – 4500 nm), widely adopted for UV optical and spectroscopic systems.
• Superior chemical stability: Inert to most acids, organic solvents and corrosive reagents, barely reacts with chemicals under normal conditions.
• Great electrical insulation: Stable dielectric performance even under high temperature, suitable for high-voltage and electronic environments.
• High dimensional purity: Low impurity content, minimal bubble & stria for precision machining and secondary fabrication.

✅ Main Applications

1. Semiconductor & Photonics: Wafer processing fixtures, diffusion furnace accessories, optical fiber preform handles, laser optical components.
2. Optics & Lighting: UV lamp parts, spectrometer accessories, deep-UV optical windows and lens blanks.
3. Laboratory & Chemical Industry: High-temperature stirring rods, reaction supports, observation sight glasses for corrosive testing.
4. Industrial Furnace & Thermal Equipment: Thermocouple protection shafts, high-temperature positioning mandrels, heat-resistant structural parts.
5. Custom Fabrication Raw Stock: Base material for machining quartz parts such as quartz crucibles, nozzles, connectors and customized quartz assemblies.

We provide custom quartz rods with tailored diameter, length, polishing and precision CNC processing to match your drawing requirements. Samples are available for validation.