Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our quartz glass plugs are meticulously crafted from high-purity fused silica (SiO2 ≥ 99.99%), offering unparalleled performance for critical sealing and closure applications. Designed to resist extreme temperatures up to 1200°C and severe chemical corrosion, these plugs ensure a secure, non-contaminating seal in even the harshest laboratory and industrial environments. Available in various standard and custom shapes with precision-ground joints, they are ideal for high-purity systems, vacuum applications, and robust chemical processing.
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 Performance
Engineered from high-purity quartz, these plugs can withstand extreme temperatures up to 1200°C, ensuring reliable sealing and operation in demanding high-heat processes without deformation or degradation.
Superior Chemical Resistance & Purity
With an SiO2 purity of ≥99.99%, these plugs offer excellent resistance to most acids and alkalis, preventing chemical reactions and ensuring zero contamination of sensitive samples or processes.
Robust & Durable Construction
Featuring a sturdy, thick-walled design and solid welds without bubbles or strikes, these quartz plugs are built for longevity and durability, providing a reliable and secure seal in rigorous laboratory and industrial environments.
Versatile Design & Customization
Available in multiple standard shapes and fully customizable specifications, these quartz glass plugs can be precisely tailored to fit unique equipment requirements, ensuring optimal sealing and compatibility across a wide range of specialized applications.
Application Scenario
High-Temperature Chemical Reactions & Furnaces
Essential for sealing openings in reaction vessels, furnaces, or other high-temperature apparatus where standard glass or rubber stoppers would fail. Their 1200°C heat resistance makes them ideal for applications like high-temperature synthesis, pyrolysis, or thermal analysis.
Corrosive Liquid & Gas Handling
Utilized in laboratories and industrial settings to safely seal flasks, tubes, or reactors containing strong acids, alkalis, or other corrosive chemicals, ensuring secure containment without degradation or leakage due to quartz’s excellent chemical inertness.
High-Purity & Contamination-Sensitive Processes
Crucial in fields such as semiconductor manufacturing, pharmaceutical research, or trace analysis where preventing contamination is paramount. These high-purity quartz plugs ensure that no impurities leach into or from the sealed system, maintaining sample integrity.
Vacuum Systems & Gas Delivery
Employed in vacuum lines, gas delivery systems, or vacuum chambers where a tight, leak-proof seal is required under vacuum conditions or for specific gas atmospheres. Their precision-ground joints and robust material ensure reliable performance in these demanding environments.
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.
Yes, our quartz glass plugs are manufactured to standard ground glass joint specifications (e.g., 14/20, 24/40, etc.), ensuring compatibility with commonly used borosilicate laboratory glassware and equipment. This allows for seamless integration into existing setups that require higher temperature or chemical resistance than typical glass plugs can offer.
Quartz glass plugs can be cleaned using standard laboratory cleaning solutions, detergents, or strong acids (excluding hydrofluoric acid) to remove residues. For stubborn deposits, mechanical cleaning with a soft brush is effective. Always rinse thoroughly with deionized water. Store them carefully to prevent chipping or scratching of the ground joint, which could compromise the seal.
The main benefits include superior temperature resistance (up to 1200°C vs. ~500°C for borosilicate), significantly higher chemical inertness (especially against strong acids and bases at elevated temperatures), and extremely high purity (minimizing sample contamination). This makes quartz plugs indispensable for high-purity chemical processes, extreme temperature reactions, and sensitive analytical work where other materials would fail or introduce impurities.
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.
