GESmaterials’ multi-bore alumina tubes are made from high-purity aluminum oxide (Al₂O₃), offering excellent thermal conductivity, high compressive strength, and outstanding resistance to thermal shock. These features make them ideal for use in high-temperature furnaces, crucibles, thermocouple protection tubes, and various scientific and industrial applications.

With a low thermal expansion coefficient, alumina tubes maintain structural integrity under fluctuating temperatures. Their high hardness and superior wear resistance also make them suitable for components such as ball valves, piston pumps, and deep-drawing dies.

In addition, alumina ceramics are compatible with brazing and metallization processes, enabling strong bonding with metals and other ceramics for advanced system integration.

Key Features:

• Excellent thermal conductivity and thermal shock resistance
• Low thermal expansion – ideal for high-temperature use
• High mechanical strength and wear resistance
• Multi-bore configurations available (ideal for multi-channel thermocouples)
• Suitable for metallization and brazed assemblies