Quartz Tube
Quartz Plate
Quartz Rod
Optical Applications
Semiconductor Industry
Laboratory and Chemical Applications
Our high-purity quartz sample holders, also known as tube furnace boats, are expertly engineered from 99.99% pure fused silica. Designed for demanding high-temperature applications, these robust holders can withstand continuous operation up to ~1200°C. Their superior chemical inertness ensures a non-contaminating environment for your samples, making them ideal for annealing, calcination, sintering, and various material processing tasks within tube furnaces. Available in standard dimensions (W: 100-490mm, D: 100-490mm, H: 35-40mm, Thickness: 3-4mm) and fully customizable to meet your specific furnace and application 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 Stability
Made from high-purity quartz, these sample holders can safely withstand continuous working temperatures up to ~1200°C. This ensures reliable performance and structural integrity during prolonged high-temperature thermal treatments without deformation or degradation.
Unmatched Purity & Non-Contamination
With 99.99% SiO2 purity, these holders are highly inert and do not react with or introduce impurities to the samples being processed. This is critical for applications requiring ultra-clean environments, such as semiconductor manufacturing, material synthesis, and sensitive analytical procedures.
Superior Chemical & Corrosion Resistance
Quartz is inherently resistant to most acids and many corrosive gases at high temperatures. This property makes the sample holders durable in harsh furnace atmospheres, preventing etching or damage that could occur with less resistant materials.
Robust & Customizable Design
The solid, thick material provides excellent mechanical strength and durability, ensuring a long service life. Furthermore, these quartz sample holders are available in various standard sizes and can be fully customized in dimensions and specific shapes to precisely fit different tube furnace models and diverse sample processing requirements.
Application Scenario
High-Temperature Material Synthesis & Processing
Essential for thermal treatments such as annealing, calcination, sintering, and crystal growth within tube furnaces, where samples require precise heating up to 1200°C in a non-reactive and high-purity environment.
Semiconductor Wafer & Thin Film Processing
Crucial for holding delicate semiconductor wafers, silicon substrates, or thin film samples during critical high-temperature deposition (e.g., CVD), etching, or annealing steps, ensuring zero contamination that could affect device performance.
Catalyst Testing & Characterization
Used to support catalyst samples in tube reactors for high-temperature reaction studies, activity testing, or thermal characterization methods, providing an inert platform that does not interfere with catalytic processes.
Ashing & Impurity Analysis
Ideal for controlled ashing of various materials in furnaces to determine ash content or prepare samples for trace element analysis. The high purity of quartz ensures that the holder itself does not contribute to the analytical results or contaminate the ash.
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 quartz sample holders are primarily custom-fabricated to match the exact internal dimensions of your tube furnace, including width, depth, and height clearances. We recommend providing your furnace model number and precise internal measurements, or consulting with our technical team, to ensure a perfect, tailored fit for optimal performance.
The lifespan of a quartz sample holder is significantly longer than conventional materials due to quartz’s exceptional thermal and chemical stability. While specific lifespan depends on usage frequency, temperature cycles, and the corrosiveness of samples/atmosphere, quartz holders are highly durable and designed for prolonged use, often lasting for years with proper care, even under demanding conditions up to 1200°C.
Yes, absolutely. The high purity and chemical inertness of quartz make these sample holders ideal for use in corrosive gas environments (e.g., those involving halogens, excluding hot concentrated HF) and under vacuum. They resist reaction with most aggressive chemicals, ensuring sample purity and preventing degradation of the holder itself, even in demanding processing atmospheres.
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.
