Premium Quartz Glass Tube
Premium Quartz Glass Tube for Laboratory Tube Furnaces – Engineered with ultimate transparency, exceptional thermal shock resistance, and rigorous chemical durability for vacuum and controlled atmosphere thermal processing.
This premium quartz glass tube is engineered specifically for research-grade tube furnaces, fused from high-purity silica
Available in a wide range of outer diameters ftrom 25mm to 100mm and customizable lengths, it integrates seamlessly with high-vacuum sealing flanges to deliver the ultra-pure reaction environments required for advanced material sintering and CVD/PECVD thin-film growth.
Exclusive UK Distributor: Benli Lab – Direct from Hefei Weiyuansu with full local technical support.
Premium Quartz Glass Tube – Laboratory High-Temperature & Corrosion-Resistant Series
Benli Lab is the Exclusive UK Distributor of Hefei Weiyuansu Laboratory Equipment. We are committed to supplying top-tier heating furnace accessories to academic institutions and industrial laboratories across the United Kingdom. This series of premium quartz glass tubes is manufactured using advanced continuous fusion or electrical fusion processes, with hydroxyl (-OH) content strictly controlled to guarantee structural stability and thermal insulation at extreme temperatures. Due to its exceptionally low linear thermal expansion coefficient, the quartz tube can withstand severe, rapid temperature fluctuations (thermal shock) without cracking, making it an indispensable high-end consumable for tube furnace atmospheric sintering, CVD, and PECVD applications.
Key Features & Benefits
- Ultra-High Purity & Low Contamination – Formulated with a silicon dioxide ($SiO_2$) content of ≥ 99.99% and extremely low trace metal impurities. This ensures that no volatile contaminants are released during high-temperature vacuum sintering, preventing cross-contamination of sensitive samples.
- Outstanding Thermal & Shock Resistance – Supports continuous operation up to $1100^\circ\text{C}$ and peak short-term processing up to $1200^\circ\text{C}$. Its extremely low thermal expansion coefficient ($5.4 \times 10^{-7}/^\circ\text{C}$) ensures it can survive dramatic thermal transitions (such as rapid cooling) without structural failure.
- Superb Acid & Chemical Resistance – Exhibits excellent chemical inertness. It is highly resistant to almost all acids (including concentrated sulphuric, hydrochloric, and nitric acids) at elevated temperatures, with the sole exceptions of hydrofluoric acid (HF) and phosphoric acid at high temperatures. Its alkaline resistance is also vastly superior to standard laboratory glassware.
- Premium Optical Transparency – Delivers excellent spectral transmittance across a wide spectrum from ultraviolet to infrared. This optical clarity is ideal for photo-chemical reactions, spectral analysis, and direct visual monitoring of the sintering process.
- High Dimensional Precision & Standardized Tolerances – Engineered with highly uniform wall thicknesses and flat, flame-polished (or ground-finish) ends. This precision ensures a gas-tight seal when coupled with standard stainless steel vacuum flanges and dual O-rings.
Technical Specifications
Quartz Glass Physical & Chemical Properties
Hydroxyl (-OH) Content: Standard Type ≤ 150 ppm | Dehydroxylated Type ≤ 5 ppm (Highly recommended for high-vacuum and moisture-sensitive experiments)
Maximum Short-Term Operating Temperature: 1200°C
Continuous Safe Working Temperature: ≤ 1100°C
Annealing Point: 1180°C
Softening Point: 1730°C
Thermal Expansion Coefficient: $5.4 \times 10^{-7}/^\circ\text{C}$ (Average over 0 to 300°C)
Density: 2.2 g/cm³
Standard Dimensional Configurations
Standard Outer Diameters (OD):
• Φ25 mm (WT: 2.0 mm / 2.5 mm / 3.0 mm)
• Φ50 mm (WT: 3.0 mm / 4.0 mm)
• Φ60 mm (WT: 3.0 mm / 4.0 mm / 5.0 mm)
• Φ80 mm (WT: 4.0 mm / 5.0 mm)
• Φ100 mm (WT: 4.0 mm / 5.0 mm)
• Φ120 mm (WT: 5.0 mm)
• Φ150 mm (WT: 5.0 mm / 6.0 mm)
• Φ180 mm (WT: 5.0 mm / 6.0 mm)
* Custom lengths, slotted tubes, multi-chamber quartz reactors, and ground-joint ends are fully customizable. Specifications subject to final confirmation.
Applications
Optimized for use in tube furnaces as processing reactors for Chemical Vapor Deposition (CVD/PECVD), vacuum annealing of metals, high-temperature calcination of battery materials, sintering of high-purity optical ceramics, and gas-solid reaction setups.
Why Choose Benli Lab? Direct factory access ensures genuine equipment, best pricing, customisation options, and dedicated UK-based technical support, installation guidance, and after-sales service.
Benli Lab – Empowering UK Research with Innovative High-Temperature Laboratory Solutions
| Model | QT-TUBE |
|---|---|
| Customisation Available | No |
| Tube Material | quartz |
| Tube Diameter | 25mm, 50mm, 60mm, 80mm, 100mm, 360mm |