1. High thermal stability: Aluminum oxide tubes can withstand extremely high temperatures, typically up to 1700 ° C (3092 ° F), without affecting their structural integrity or performance. 2. Mechanical strength: Aluminum oxide tubes have high compressive and tensile strength, allowing them to withstand large loads and stresses, which is crucial for many high-temperature applications. 3. Electrical insulation: Aluminum oxide tubes have excellent electrical insulation performance, which can effectively insulate and protect sensitive electrical systems even in harsh environments. 4. Corrosion resistance: Unlike metals, aluminum oxide tubes have strong resistance to various acids, alkalis, and other corrosive substances. 5. Biocompatibility: Alumina oxide tubes is also used in the medical field due to its biocompatibility, corrosion resistance, and ability to withstand sterilization processes.