What is the difference between fused quartz and fused silica?

Fused quartz is melted from purified natural quartz crystal, while fused silica is usually synthesized from silicon-containing chemicals such as SiCl4. Fused quartz offers excellent thermal performance at a lower cost and suits most furnace, lighting and laboratory uses; synthetic fused silica is chosen when the deepest UV transmission and lowest metallic impurities are required.

What temperature can your quartz glass tubes withstand?

Our transparent fused quartz tubes are typically used continuously up to about 1100 °C and for short periods up to about 1450 °C. The softening point is approximately 1683 °C. Because the thermal expansion coefficient is only about 5.5 × 10⁻⁷/°C, the tubes tolerate rapid heating and cooling far better than borosilicate glass.

Can you manufacture custom quartz parts from my drawing?

Yes. We have more than 11 years of OEM experience and offer OEM, ODM and buyer-label services. Send your drawing, material grade and quantity to info@kemzoquartz.com and our engineers will confirm feasibility, tolerances and lead time.

Which payment and delivery terms do you accept?

We accept T/T, L/C, PayPal and cash, in USD, EUR, AUD, HKD or CNY. Delivery terms include FOB, CFR, CIF, EXW, DDU, DAF and express door-to-door delivery.

How do you pack fragile quartz glass for export?

Each item is individually protected with foam or bubble cushioning, tubes are separated so they cannot touch, and cartons are secured inside export-grade wooden cases for sea and air freight. Packing can be adapted to your warehouse handling requirements.

Which countries do you export to?

Between 71% and 80% of our output is exported. Our main markets are North America, Eastern Asia including South Korea, Southeast Asia, Europe, South America and Oceania.

High Purity Solid Optical Clear Fused Quartz Glass Rod for Light Guide Semiconductor

1 / 5

High Purity Solid Optical Clear Fused Quartz Glass Rod for Light Guide Semiconductor

Send Inquiry

High Purity Solid Optical Clear Fused Quartz Glass Rod for Light Guide Semiconductor

Related Products

4-Inch US Sand Fused-Quartz Crucibles with Bubble-Free Inner Layer for Silicon Crystal Growth Melting

99.99% Pure Clear Quartz Twin Tube Polished Ozone Free Customized Bending Welding Cutting for Chemical Industry

Custom Size Translucent Capillary Quartz Tube Polished Twin Pipe Ozone Free Chemical Industry

Fused-Quartz Combustion Sample Boats with Integrated Pull-Ring Handles for Laboratory Tube Furnace Heating

Optical Cobalt Blue Glass Disc Circular Filter Furnace Sight Glass Window

4-Inch US Quartz Sand Fused Crucibles with Fire-Polished Rim for High-Temperature Semiconductor Ingot Melting

Clear Transparent Quartz Rod 4-42mm Diameter Polished Fused Silica Bar 1100 Degrees Centigrade Decoration Glass

Clear Fused-Quartz Combustion Vessels with Fused Pull Rings for High-Temperature Analytical Tube Furnaces

High Temperature Resistant Quartz Glass Circular Silica Custom Size Cutlery Use

Heavy-Wall Fused-Quartz Cylindrical Pressure Tubes with Squared Ends for High-Pressure Autoclave Sight Glass