Aohong supplies precision-engineered quartz glass tubes from high-purity fused silica, delivering exceptional thermal stability, chemical resistance, and optical clarity. Our custom quartz tubes serve demanding applications in semiconductor manufacturing, laboratory heating systems, UV lighting, and chemical processing. With a continuous working temperature of 1100°C and SiO₂ purity up to 99.99%, every tube is manufactured to your exact diameter, wall thickness, and length requirements.
Product Overview: Fused Silica Quartz Glass Tube
Quartz glass tube is a high-performance tubular material made from fused silica (SiO₂). Unlike ordinary glass, it withstands extreme heat, rapid temperature shifts, and aggressive chemicals without cracking or degrading.
Key benefits for industrial users:
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Continuous use at 1100°C, short-term higher
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Exceptional thermal shock resistance from a low expansion coefficient (0.55 × 10⁻⁶ /K)
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Corrosion resistance against most acids and chemicals
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Broadband optical transmission from UV through IR
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Ultra-low contamination with purity options ≥99.99%
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Long service life in harsh production environments
Technical Specifications & Customization Range
Every dimension can be customized. The table below shows our typical capability; contact us if your requirement falls outside these ranges.
| Parameter | Standard Options / Custom Range |
|---|---|
| Material | High Purity Fused Silica (SiO₂) |
| Purity | 99.9% (standard), 99.99% available |
| Outer Diameter | 2 mm – 300 mm (custom) |
| Wall Thickness | 0.5 mm – 10 mm (typical, custom upon request) |
| Length | Up to 2000 mm (longer lengths possible) |
| Continuous Working Temperature | 1100°C |
| Softening Point | Approx. 1730°C |
| Thermal Expansion Coefficient | 0.55 × 10⁻⁶ /K |
| Optical Transmission Range | UV to IR (185 nm – 2.5 μm) |
| Surface Finish | Fire polished, ground, or as-drawn |
| Shape | Round tube; flanged/beaded ends available |
| Customization | Diameter, length, wall, purity, end finishing, packaging |
Don’t see your dimensions? Send Us Your Specifications
Key Features & Your Advantages
1. Extreme Temperature & Thermal Shock Resistance
Thanks to an almost zero thermal expansion coefficient, our quartz tubes handle rapid heating and cooling cycles without fracturing. Use them in:
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Heating element sleeves
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High-temperature furnace liners
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Thermal processing equipment
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Laboratory tube furnaces
2. Outstanding Chemical Inertness
Quartz resists attack from most acids, alkalis, and halogens, making it ideal for aggressive chemical environments and processes where contamination control is critical.
3. High Optical Transmission (UV to IR)
Excellent transmission from 185 nm to 2.5 μm supports UV disinfection, photochemistry, and analytical instruments with minimal light loss.
4. Ultra-High Purity (≥99.99% SiO₂)
For semiconductor, photovoltaic, and precision research applications, we supply tubes with total impurity levels ≤10 ppm, minimizing contamination in wafer processing and diffusion furnaces.
5. Custom Engineering Support
We work from your drawing, 3D model, or a simple description. Our team advises on wall thickness, end finishing (fire polish, grinding), and flanging to ensure the tube fits your assembly perfectly.
Quartz Glass Tube Types We Supply
Transparent Quartz Glass Tube
Clear fused silica with maximum UV-to-IR transmission. For UV lamps, optical devices, and laboratory reactors.
Opaque Quartz Glass Tube
Milky-white appearance provides thermal insulation and diffuse light transmission. Used in infrared heaters and industrial furnaces.
High Purity Quartz Tube
SiO₂ ≥99.99% with trace metals controlled at ppm level. Essential for semiconductor diffusion furnaces and photovoltaic cell manufacturing.
Industry Applications (Where Our Quartz Tubes Work)
Semiconductor Manufacturing
Our high-purity quartz tubes are used as furnace liners, wafer carriers, and gas delivery tubes in diffusion and LPCVD processes. Custom diameters and flanged ends to match your equipment.
Laboratory & Research
Transparent quartz tubes for tube furnaces, sample holders, and chemical reactors. Fire-polished edges and high purity ensure repeatable experimental results.
UV Lighting & Water Treatment
Quartz sleeves for UV germicidal lamps. Excellent UV-C transmission and custom cut lengths to fit standard and proprietary lamp configurations.
Chemical Processing
Corrosion-resistant tubing for acid dosing, high-temperature reactions, and sight glasses in aggressive fluid handling systems.
Solar Energy Manufacturing
Quartz tubes for thermal processing in photovoltaic cell production lines, with controlled purity to prevent doping contamination.
Infrared Heating & Drying
Opaque quartz tubes as IR emitter sleeves and heater elements in industrial drying and thermoforming equipment.
Tell us your application – we’ll recommend the right tube.
Tell us your application – we’ll recommend the right tube. Get Application-Specific Advice
Quartz Glass Tube vs. Alternatives
| Feature | Quartz Glass Tube | Ordinary Glass Tube | Ceramic Tube |
|---|---|---|---|
| Max Operating Temperature | 1100°C | 400-500°C | 1200-1600°C |
| Thermal Shock Resistance | Excellent | Poor | Moderate |
| Chemical Resistance | Excellent | Moderate | Good |
| Purity | Ultra-high | Low | Medium |
| UV Transmission | Excellent | Poor | None |
| Cost-effectiveness in its range | High | Low | Variable |
Quartz glass tubes offer the best balance of high temperature, purity, and optical performance for many industrial applications where ordinary glass fails and ceramics are overkill or opaque.
Manufacturing & Quality Control
Aohong operates advanced quartz fabrication facilities capable of cutting, grinding, fire polishing, and precision finishing.
Our capabilities include:
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Precision tube cutting (tolerances ±0.1 mm on diameter)
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End grinding and beveling
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Fire polishing for smooth, non-porous surfaces
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Flanging and joining (custom shapes)
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Custom packaging for export
Before shipment, every tube passes:
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Visual and dimensional inspection
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Surface quality check under magnification
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Material verification (purity and transmission testing, if required)
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Packing integrity check for safe transit
We’re accustomed to the demands of global industrial buyers and can provide certificates of conformity upon request.
Why Global Buyers Choose Aohong Quartz Glass Tubes
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One-stop custom manufacturing – diameter, length, wall, purity, finishing – all from a single supplier.
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Consistent batch quality – strict raw material selection and process control.
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Export-ready packaging – sturdy wooden crates and vacuum sealing ensure tubes arrive intact.
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Responsive technical support – application engineers help with material selection and design feasibility.
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Flexible order quantities – from small trial batches to full production volumes.
Frequently Asked Questions (FAQ)
What is a quartz glass tube?
A quartz glass tube is a tubular product made from high-purity fused silica (SiO₂), valued for its heat resistance, chemical stability, and UV-to-IR transmission.
What temperature can quartz glass tubes withstand?
Our tubes operate continuously at 1100°C with a softening point around 1730°C, thanks to the extremely low thermal expansion coefficient.
Can you customize dimensions?
Yes. We customize outer diameter (2-300mm), wall thickness, length, purity, and end finishing according to your specifications. Send your drawing for a quote.
What is the difference between transparent and opaque quartz tubes?
Transparent quartz provides clear optical transmission from UV to IR. Opaque quartz contains micro-bubbles that scatter light, offering thermal insulation and is used primarily in IR heating.
What is your typical lead time for custom quartz tubes?
Lead times depend on order complexity and quantity. Standard custom orders typically ship within 2-4 weeks. We’ll confirm upon reviewing your specification.
Can you provide quartz tubes with flanges or ground joints?
Yes, we offer fire-polished flanges, ground joints, and beaded ends. Please specify your requirements during inquiry.
How do you package quartz tubes for international shipping?
We use shock-absorbing inserts and sturdy wooden export crates. High-purity tubes may be individually vacuum-sealed to prevent contamination during transit.
What purity grades do you offer?
Standard purity is 99.9% SiO₂; high-purity tubes achieve ≥99.99% with controlled trace impurities, suitable for semiconductor and PV applications.
Start Your Quartz Tube Inquiry Now
Whether you need a standard transparent quartz tube or a fully custom high-purity tube with specific end finishing, Aohong has the manufacturing capability and technical expertise to deliver.
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Send your drawing or dimensions – we’ll provide a quotation within 24 hours.
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Unsure about the grade? Describe your application, and our engineers will recommend the optimal material and design.
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Need a sample? Trial orders and samples can be arranged to validate quality before mass production.
