High Purity Heat Resistant Quartz Glass Tube with Custom OD ID for Semiconductor Applications

We accept custom orders according to different diameter, thickness, length specifications, 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 offers excellent acid resistance with better chemical stability than opaque quartz glass, and is non-hygroscopic and non-weathering.

Quartz glass maintains high dielectric strength and low conductivity even at high temperatures, pressures, and frequencies. With minimal dielectric loss across applied frequency bands, it serves as an excellent high-temperature dielectric insulation material.

Quartz glass transmits both far-ultraviolet spectrum and visible light with near-infrared spectrum. It features high temperature resistance, minimal thermal expansion, excellent chemical thermal stability, and optical properties comparable to general optical glass.

The thermal expansion coefficient of quartz glass is only 1/12 to 1/20 that of ordinary glass. Standard testing involves heating specimens to 1200°C and quenching in cold water repeatedly more than three times without cracking.

Quartz glass offers better mechanical properties than conventional glass and ceramics, though it maintains some brittleness. While theoretical strength reaches approximately 24×1.3 MPa, actual measured strength is typically lower.

The relaxed structure of quartz allows certain gas ions to diffuse through the network even at high temperatures, with sodium ion diffusion being particularly rapid. This property is especially important for specific 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. Located in China's Crystal Capital - Donghai City, Jiangsu Province, just 70 km from Lianyungang port with convenient transportation.

Covering 1,000 square meters with over 30 employees, we 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.

We adhere to business integrity, extensive experience, competitive pricing, quality assurance, and excellent after-sales service. We sincerely welcome customers to discuss their requirements.