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.

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

1 / 5

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

Send Inquiry

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

Related Products

Clear Fused-Quartz Petri Dishes with Lids for High-Temperature Cell Culture and Acid Evaporation

Clear Fused-Quartz Melting Crucibles with Fire-Polished Rims for High-Temperature Laboratory Muffle Furnaces

10 Inch High Purity Opaque Milky Fused Quartz Crucible for High Temp Melting Casting

Thermal Shock Resistant Transparent Fused Quartz Furnace Tube for High Temperature Processing

High Purity Optical Clear Fused Quartz Disc Circular Glass Window Substrate

Optical Fused-Quartz Spectrophotometer Cuvettes with PTFE Lids for UV-Vis Precision Absorbance Analysis

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

High Purity Quartz Glass Boat Transparent Bowl Shape 6-16 Chemical Industry Experimental Equipment

Clear Fused Silica Quartz Glass Plate Transparent Square 0.5-100mm for Optical Semiconductor Industry

Solid Fused-Quartz Cylindrical Rods with Precision 90-Degree Flat-Cut Ends for Optical Laser Light Guides