Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our high-purity quartz combustion tubes are engineered from premium fused silica, offering exceptional performance for elemental analysis and high-temperature furnace applications. Designed for use in carbon, sulfur, and nitrogen analyzers, these tubes withstand extreme temperatures, maintain high chemical inertness, and ensure minimal contamination for precise and reliable analytical results. Available in various diameters, lengths, and end configurations, we offer custom fabrication to perfectly fit your specific instrument and experimental requirements.
Remarks：
- ayment method: By wire transfer or advance payment, depending on the quantity of the order.
- Delivery time: According to the order quantity.
- Transportation method: Sea freight or air freight, depending on the customer.
| Property Content | Property Values |
|---|---|
| SiO2 | 99.99% |
| Density | 2.2×10³ kg/cm³ |
| Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
| Tensile Strength | 4.8×10⁷ Pa (N/mm2) (7000 psi) |
| Compression Strength | >1.1×10⁹ Pa (160,000 psi) |
| Coefficient of Thermal Expansion | 5.5×10⁻⁷ cm/cm·°C (20°C-320°C) |
| Thermal Conductivity | 1.4 W/m·°C |
| Specific Heat | 670 J/kg·°C |
| Softening Point | 1730°C (3146°F) |
| Annealing Point | 1210°C (2210°F) |
| Strain Point | 1120°C (2048°F) |
| Work Temperature | 1200°C (2192°F) |
| Electrical Resistivity | 7×10⁷ ohm cm (350°C) |
| Size | Customized |
| Logo | Customized Logo Accept |
Exceptional High-Temperature Resistance
Engineered from high-purity quartz, these combustion tubes can withstand continuous operation at extreme temperatures (typically up to 1100-1200°C), making them indispensable for high-temperature combustion, ashing, and elemental analysis furnaces.
Unmatched Purity & Contamination-Free Analysis
The ultra-high purity of fused silica (SiO2 ≥ 99.99%) ensures that the tube itself does not introduce any impurities or react with samples, guaranteeing accurate and reliable results, particularly for sensitive carbon, sulfur, and nitrogen elemental analysis.
Superior Chemical Inertness & Durability
Quartz is highly resistant to most acids, alkalis, and reactive gases, preventing corrosion and degradation even when processing samples that produce aggressive combustion byproducts. This chemical stability contributes to a longer service life and consistent performance.
Precision & Customization for Specific Instruments
Available in a wide range of standard and custom dimensions (diameters, lengths, and end configurations), these tubes can be precisely tailored to fit various elemental analyzers and combustion furnaces, ensuring optimal performance and compatibility with specific analytical setups.
Application Scenario
Elemental Analysis (C, S, N, O, H)
Crucial components in elemental analyzers for carbon, sulfur, nitrogen, oxygen, and hydrogen determination. These tubes provide the high-temperature and contamination-free environment necessary for complete combustion of samples and accurate measurement of liberated gases.
High-Temperature Material Testing & Ashing
Utilized in laboratories for high-temperature material characterization, such as ashing, calcination, or gravimetric analysis. They provide an inert and stable chamber for heating samples to extreme temperatures without reacting with the material or introducing impurities.
Combustion Furnaces & Process Heating
Employed as reaction vessels or liners within high-temperature combustion furnaces in various industrial processes. Their exceptional heat resistance and chemical inertness make them ideal for processes requiring elevated temperatures and a controlled, non-contaminating environment.
Gas Purification & Reaction Systems
Used as reaction tubes in gas purification setups or specialized chemical reaction systems where gases need to be heated to high temperatures in an inert, high-purity environment. This ensures efficient reactions and prevents side reactions or contamination from the tube material.
Handle with care
Quartz glass products are made from valuable materials and must be handled gently to avoid collisions and falls.
Regular maintenance
The maintenance of quartz tubes must be performed regularly to ensure their long-term stable performance. Regularly check the connections, fixings, and mechanical vibrations of the quartz tubes to prevent abnormalities. The exterior of the quartz tubes is prone to contamination from dust and moisture, so they should be cleaned regularly.
Storage environmen
When storing quartz tubes, care should be taken to avoid exposure to mechanical vibrations, shocks, and excessively high temperatures. They should be kept in a dry, cool, and well-ventilated place, avoiding direct sunlight and high-temperature environments.
Our high-purity quartz combustion tubes are designed for broad compatibility with various elemental analyzers, including those for carbon/sulfur and nitrogen/protein determination. However, specific instrument models often require precise dimensions and end configurations. We offer a wide range of standard sizes and provide custom fabrication services to ensure a perfect fit for your exact analyzer model and application needs.
The lifespan of a quartz combustion tube can vary significantly depending on the operating temperature, sample matrix, frequency of use, and cleaning protocols. While quartz offers excellent durability and heat resistance, constant exposure to extreme temperatures and certain corrosive combustion byproducts can eventually lead to devitrification or embrittlement. Proper cleaning and careful handling can maximize their service life.
For optimal performance and longevity, quartz combustion tubes should be regularly cleaned to remove residues. Depending on the type of residue, this might involve soaking in appropriate acid baths (avoiding hydrofluoric acid), heating to burn off organic residues, or mechanical cleaning with specialized brushes. Always follow your instrument manufacturer’s cleaning recommendations and ensure thorough drying before reuse to maintain the tube’s high purity and prevent contamination.
Laser Drilling of Quartz
Threaded Quartz Tube
External Thread on Quartz Tube
Internal Threaded Quartz Tube
Quartz Tube Slotted
Window on Quartz Tube
Angled Cut Quartz Tube
Quartz Tile
Quartz Tube with Window
Frequently asked questions
We specialize in the end-to-end manufacturing of high-purity quartz glass components. Our core product lines include:
Quartz Tubing & Rods: A wide range of diameters and specifications.
Quartz Plates & Discs: Precision-cut and polished for optical and industrial use.
Quartz Labware: A full suite of standard and custom glassware, including beakers, flasks, and boats.
Semiconductor-Grade Quartz: High-purity components like process tubes and carriers for semiconductor fabrication.
Custom Fabricated Components: We can produce complex parts tailored to your unique designs and specifications.
Yes. Custom fabrication is at the core of our business. With over a decade of specialized experience, we partner with companies to provide expert OEM/ODM services. Our capabilities include welding, grinding, drilling, polishing, bending, and other precision processing techniques to create components that meet your exact requirements.
Quality is paramount in our manufacturing process. We are an ISO 9001:2015 certified manufacturer, ensuring that our processes meet international quality management standards.Our products also undergo rigorous SGS testing for purity and performance. We use high-purity raw materials (up to 99.998% SiO2) to produce fused quartz and fused silica products with exceptional thermal stability, high-temperature resistance, and chemical inertness.
We've streamlined our process to be as efficient as possible:
Submit Your RFQ: Send us your technical drawings, specifications, and requirements via our website contact form or email.
Rapid Response: You can expect an initial response within minutes and detailed communication within half an hour.
Design & Proposal: We will deliver a detailed design proposal and a competitive quote within 24 hours.
Prototyping & Production: Upon approval, we move swiftly from prototyping to full-scale production to meet your deadlines.
Partnering with Aoxin Quartz offers several key advantages:
Proven Expertise: With 10+ years in the industry, we have the technical knowledge to tackle complex challenges.
One-Stop Solution: We manage the entire production process, from sourcing high-purity raw materials to fabricating and finishing complex components.
Competitive Value: Located in a major quartz production hub, we leverage an efficient supply chain and advanced manufacturing to offer exceptional quality at a competitive price point.
Dedicated Partnership: Over 90% of our clients become long-term partners. We are committed to your success through responsive service, reliable quality, and innovative solutions.
