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.

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

1 / 5

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

Send Inquiry

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

Related Products

High Purity Opaque Milky White Fused Quartz Rectangular Plate Sheet Slab

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

Raw Rough-Ground Fused-Quartz Blank Plates with Straight Edges for Semiconductor Wafer Substrate Lapping

High Temperature Resistant Quartz Glass Circular Silica Custom Size Cutlery Use

High Purity Optical Clear Fused Quartz Disc Circular Glass Window Substrate

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

Clear Fused-Quartz Laboratory Beakers with Molded Pouring Spout for Acid-Resistant Chemical Heating

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

Precision Optical Fused-Quartz Square Plates with Chamfered Edges for Semiconductor Photomask Windows

High Purity Heavy Wall Small Bore Quartz Glass Tube Flat Cut Unpolished