High-Temperature Equipment and Furnaces: Alumina tubes are commonly used in high-temperature furnaces, heating devices, and heat treatment equipment as pipes, support components, or outer shells due to their resistance to high temperatures and chemical corrosion.

Metallurgy and Metal Processing: Alumina tubes are used in the metallurgy industry, particularly in processes involving molten metals and casting, to withstand the corrosive effects of high-temperature metals.

Chemical Equipment: Alumina tubes are widely used in chemical reactors, heat exchange systems, and other chemical equipment that requires resistance to both high temperatures and corrosion.

Electrical and Electronic Applications: Alumina tubes are used for electrical isolation and electronic component protection, particularly in environments where high electrical insulation is required.

Medical and Biomedical: Alumina tubes are also used in certain medical devices, providing protection from high temperatures and chemical corrosion, as well as ensuring biocompatibility, particularly in sterilization processes and surgical instruments.