Product Introduction
Industrial furnaces face harsh conditions such as frequent thermal cycling, high-temperature flue gases, and abrasive dust. The Ceramic Tube for Furnace is specially designed for these environments. Made from 95% or 99% alumina combined with mullite and sintered at 1550–1650℃, these tubes feature low thermal expansion and excellent thermal shock resistance. They can withstand rapid cooling at 1100℃ without cracking, making them ideal for frequent start-stop operations. With high temperature resistance, corrosion protection, and excellent insulation, they serve as support tubes, thermocouple protection tubes, or cable guide tubes, widely used in resistance furnaces, annealing furnaces, ceramic kilns, and glass kilns.
The Ceramic Tube for Furnace provides a reliable solution for high-demand industrial applications, ensuring furnace longevity and operational safety.
Specifications
- Material: 95%/99% alumina + mullite
- Continuous service temperature: Alumina 1500℃, Mullite 1400℃
- Thermal shock resistance: Withstands 1100℃ water quench without cracking
- Insulation strength: ≥18 kV/mm
- Dimensions: Outer diameter 10–200mm, inner diameter 5–180mm, length 50–2000mm
- Structure: Straight/Custom shapes, open or closed ends
Key Advantages
- High Temperature and Thermal Shock Resistance: Special high-temperature formula resists large temperature variations. The tube can endure rapid cooling to 1100℃ without cracking or deformation, suitable for furnaces with frequent start-stop cycles.
- Stable High-Temperature Structure: Maintains rigidity at high temperatures, preventing softening, bending, or collapsing, ensuring long-term structural stability and reducing maintenance frequency.
- Corrosion Resistance and Insulation: Resistant to flue gases, acidic or alkaline high-temperature gases, and metallic dust. Excellent insulation allows safe use for thermocouple protection, wiring, and mechanical support.
Application Fields
These tubes are widely used in industrial resistance furnaces, heat treatment furnaces, annealing furnaces, quenching furnaces, ceramic kilns, glass kilns, metallurgical furnaces, powder metallurgy furnaces, and laboratory furnaces, supporting both continuous production and intermittent experimental high-temperature operations.
Furnace Compatibility Experience
With 20 years of experience, our team is familiar with various furnace types and can recommend the right tube specifications based on temperature, installation, and heating method, preventing common issues like cracking, oxidation, or deformation. Our customers rely on the Ceramic Tube for Furnace for precision and reliability in demanding furnace setups.
Rigorous High-Temperature Testing
Before shipment, each tube undergoes high-temperature soaking, thermal cycling, and thermal shock simulation to replicate actual furnace conditions. Every tube is inspected for defects, structural strength, and resistance to cracking, ensuring uninterrupted industrial operation.
Custom Shaped Tubes
We support extended tubes, reduced-diameter tubes, bent tubes, and sealed-end tubes. Custom designs based on client drawings are available, with options for matte or glazed surfaces, combining sealing and corrosion resistance.
Hot Tags: ceramic tube for furnace, China ceramic tube for furnace manufacturers, suppliers, factory, Alumina Ceramic Tube, Alumina Tube, ceramic tube, High Temperature Ceramic Tube
