High-purity alumina ceramic tubes are a staple in high-temperature furnace applications due to their excellent thermal stability, high dielectric strength, and resistance to chemical attack. They are commonly used as protection tubes for thermocouples, insulators, and process tubes in heat treatment, melting, and diffusion furnaces operating at temperatures up to 1700°C. Innovacera supplies a wide variety of standard and custom-sized alumina tubes to meet the rigorous demands of industrial and laboratory furnaces.