Custom High Temperature Insulating 99% Alumina Ceramic Tube Al2O3 Ceramic Pipe

Alumina ceramic part is produced by firing a tightly packed powder form of Al2O3 which includes some binder material. Commercially available grades range from 90% up to 99.95% with the higher purity generating somewhat higher hardness. Alumina Ceramics are the most highly regarded and widely used of the ceramic products. It is non-conductive, resistant to corrosion, and are perfect for electrical insulation. Alumina Ceramic has proven to be the best ceramic for protection of vital electrical components. It can be processed as tubing, sheets, bars, rods, discs, and many other forms depending on the requirements of the project.

Alumina Ceramic Tube

Alumina ceramic tube is manufactured from high‑purity alumina (Al₂O₃) raw material through isostatic pressing and high‑temperature sintering. It features excellent electrical insulation, outstanding high‑temperature resistance, great mechanical strength and superior chemical corrosion resistance.

This ceramic tube maintains stable performance under continuous high‑temperature operating conditions. It resists erosion from most acids, alkalis and organic solvents, and delivers low thermal expansion coefficient together with good thermal shock resistance.

Customizable outer diameter, inner diameter and overall length are available. Precision‑machined end faces and smooth inner & outer surfaces ensure reliable assembly fit. Widely applied in electric heating elements, temperature‑measuring thermocouple protection sleeves, high‑voltage insulation parts, laboratory furnaces and industrial equipment.

Alumina Oxide (Al2O3) Properties:

◆ High Hardness
Strong wear resistance, durable and not easy to wear.

◆ Excellent Thermal Conductivity
The thermal conductivity at room temperature is 30~40W/(m·K), which is higher than that of steel, copper and aluminum.

◆ Good Chemical Stability
Resistant to acid, alkali and salt corrosion.

◆ High Temperature Stability
Withstands 1600℃ high temperature and has high temperature stability.

Key Properties

• High working temperature up to 1600℃
• Excellent electrical insulation performance
• High bending strength & hardness
• Good resistance to acid‑base corrosion
• Custom dimensions and tolerances supported

Applications

Thermocouple protection tubes, furnace insulation components, heating element sleeves, electronic insulating parts, industrial high‑temperature equipment.

Alumina Ceramics Typical Applications Include:

Wear resistant components,

High pressure nozzles,

Thermocouple tubes,

Electrical Insulators,

Corrosive labware,

Furnace fixtures,

Ballistic armor,

Thread guides,

Laser Tubes,

Pump seals.

Norceramic New Materials supplies high-performance ceramic materials and precision components for research, prototyping, and industrial production. Our products includes pyrolytic and hot-pressed boron nitride, silicon carbide, alumina, zirconia, and other specialized ceramics, with standard products and custom solutions available for demanding applications.

With a deep understanding of material behavior in ceramic parts, Norceramic specializes in high-performance ceramics including Alumina, Zirconia, and ZTA, and more to deliver components that meet the most stringent mechanical and thermal requirements.

At Norceramic, we specialize in providing high-precision custom ceramic parts for the medical, electronics, optics, and semiconductor sectors. Through DFM optimization and full-process quality control, we ensure micron-level dimensional consistency for complex geometries during mass production.

From R&D prototypes to full-scale production, Norceramic New Materials delivers high-purity alumina, boron nitride, silicon carbide, and aluminum nitride ceramics tailored to your exact specifications. We work closely with trusted, ISO-certified manufacturers to ensure every batch meets rigorous quality standards—so you can focus on your application. Whether you need custom shapes, small quantities for research, or high-volume production for industrial use, Norceramic provides the technical expertise and supply chain reliability you expect.

Our mission is to support innovation by providing high-quality ceramic materials and solutions. We are committed to helping our customers drive innovation and achieve operational excellence. With a focus on both cutting-edge technology and traditional craftsmanship, Norceramic ensures that every ceramic product we deliver offers optimal performance, quality, and consistency.