The Quartz Furnace Tube Manufacturer!
Alfa Quartz was established in 2013. It is a manufacturer that researches, develops, produces, and sells high-quality semiconductor quartz components, quartz glass instruments, optical quartz glass sheets, PV (Photovoltaic) quartz boats/boat trays, and other accessories.
Why choose us
Professional Team
We provide leading providers of analysis, testing, quality assessment, and failure analysis solutions. As a recognized expert in the field of glass, we provide our customers with reliable solutions, explanations and recommendations.
Best Quality Control
In order to present the best performance, we conduct high standard tests each product between every step. It is guaranteed that our products are qualified by ISO 9001, RoHs, HF and REACH certifications.
Main Market
Our quartz products are sold well in many countries such as the United States, Germany, the United Kingdom, Canada, Japan, and South Korea.
|
Physical Properties |
Values |
|
Purity |
＞99.99% |
|
Density |
2.2g/cm3 |
|
Transparency |
＞90% |
|
Mohs Hardness |
5.5--6.5 |
|
Deformation Point |
1280℃ |
|
Softening Point |
1780℃ |
|
Annealing Point |
1250℃ |
|
Specific Heat (20 - 350°C) |
670J/kg.℃ |
|
Thermal Conductivity (20°C) |
1.4W/m.℃ |
|
Heat Conductivity (w/m.k,1000 ℃ ) |
1.0-1.2 |
|
Refractive Index |
1.4585 |
|
Coefficient of Thermal Expansion |
5.5*10 -7cm/cm.℃ |
|
Hot - working Temperature |
1750~2050℃ |
|
Short - term Service Temperature |
1300℃ |
|
Long - term Service Temperature |
1100℃ |
Advantages of Quartz Tube Furnaces
Optical Clarity
The transparency of quartz allows for visual monitoring of samples during the heating process, which is ideal for experiments that require real-time observation.
Thermal Shock Resistance
With a low thermal expansion coefficient, quartz can withstand rapid temperature changes, making it suitable for fluctuating thermal environments.
Purity
Quartz has a high purity level and is less likely to contaminate samples, making it ideal for experiments sensitive to impurities.
Applications of Quartz Furnace Tube
High-Temperature Applications
• Quartz tubes are ideal for processes requiring extreme heat, such as sintering, annealing, and calcination, due to their ability to withstand temperatures up to 1200°C without deformation.
• In quartz tube furnaces, they act as reaction chambers, ensuring uniform heat distribution and a controlled environment for thermal treatments.
Laboratory Uses
• Serve as sample holders to maintain experimental integrity, especially in material science and chemistry labs.
• Their optical clarity allows for visual monitoring of reactions, while their chemical inertness prevents contamination.
• Easily cleaned and reused, reducing costs and waste in research settings.
Industrial Applications
• Semiconductor Manufacturing: Used as quartz boats to hold wafers during high-temperature processes like diffusion and oxidation.
• Vacuum Systems: Provide structural integrity under low-pressure conditions, often serving as protective tubes for thermocouples.
• Sight Glasses/Level Gauges: Enable visual inspection in harsh environments, such as chemical reactors or aerospace systems.
Specialized Roles
• Act as end caps or transfer carriers in material processing, ensuring safe handling of sensitive samples.
• Used in pharmaceuticals for processes requiring sterile, non-reactive containers.
Cross-Industry Relevance
• Found in electronics (e.g., LED production), aerospace (thermal shielding), and energy (solar cell fabrication).
• Their durability and precision make them a staple in both R&D and large-scale manufacturing.
Custom Quartz Furnace Tube Fabrication
Custom lengths, diameters, and wall thicknesses.
Specific end finishes (e.g., fire-polished, ground, flared).
Addition of side arms, ports, or thermocouple wells.
Integration of standard taper joints, ball joints, or custom flanges.
Tubes with specific optical properties or coatings (if applicable).
Complex furnace reactor designs.
Our factory
The company covers an area of 7,500 square meters with a building area of 9,000 square meters. It has more than 100 employees. The production machines for the cold and hot processing of quartz glass are precise and complete. The processes are mature and stable. The processing technology and product quality have reached a medium to high level in the industry.
FAQ
As one of the leading quartz furnace tube manufacturers and suppliers in China, we warmly welcome you to wholesale bulk quartz furnace tube for sale here from our factory. Also, customized service is available.
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