High Purity Quartz Glass Tube with High Temperature Resistance and Customizable Dimensions

We accept custom specifications according to different diameter, thickness, length requirements, or by providing your technical drawings.

• High purity: SiO₂ > 99.99%
• Operating Temperature: 1200℃; Soften Temperature: 1730℃
• Excellent thermal stability
• Superior acid and alkali resistance
• High optical transmittance
• Excellent electrical insulation properties

Quartz glass is an acidic material that is inert to all acids except hydrofluoric acid and hot phosphoric acid. It serves as an excellent acid-resistant material with superior chemical stability compared to opaque quartz glass, featuring non-hygroscopic and non-weathering characteristics.

Quartz glass exhibits high dielectric strength and low conductivity. Even under high temperature, pressure, and frequency conditions, it maintains excellent dielectric strength and resistance with minimal dielectric loss, making it an outstanding high-temperature dielectric insulation material.

Quartz glass possesses unique optical properties, transmitting both far-ultraviolet spectrum and visible light with near-infrared spectrum. It offers high temperature resistance, minimal thermal expansion coefficient, excellent chemical thermal stability, and optical quality comparable to general optical glass.

The thermal expansion coefficient of quartz glass is exceptionally small—only one-twelfth to one-twentieth that of ordinary glass. Standard testing involves heating specimens to 1200°C and then rapidly quenching in cold water, withstanding this process more than three times without cracking.

Quartz glass demonstrates superior mechanical properties compared to conventional glass and ceramics, though it exhibits some brittleness. While theoretical strength calculations reach approximately 24-31.2 MPa, actual measured strength values are typically lower.

The quartz structure remains relatively open, allowing certain gas ions to diffuse through the network even at high temperatures. This characteristic, particularly the faster diffusion of sodium ions, is especially important for specific user applications.

Lianyungang Shengfan Quartz Product Factory is a professional manufacturer specializing in research and development of quartz plates, quartz tubes, quartz flanges, quartz rings, cuvettes, and quartz instruments. The company is located in China Crystal Capital - Donghai City, Jiangsu Province, China, approximately 70 km from Lianyungang port with convenient transportation access.

Covering an area of 1000 square meters, we employ over 30 staff members and achieve annual sales exceeding USD 5.2 million. Guided by our philosophy of Technology Orientation, Quality First, Integrity and Responsibility, and Sustainable Operation, we are dedicated to establishing an international enterprise with standardized and sustainable operational capabilities.

Our company adheres to business integrity, extensive experience, reasonable pricing, quality assurance, and provides excellent after-sales service. We sincerely welcome customers to visit and negotiate business opportunities.