Coe tubes & isolators

AS Composants has selected a wide range of technical ceramic, Closed One End (COE) and open both ends tubes for thermal,
chemical, and mechanical applications, using oxide and nonoxide materials. These products are designed to operate at temperatures up to 2000°C.

Our range covers various materials of varying porousness: CRP530, CRE610, or APF710. These ceramics are suitable for
extreme environments, whether oxidizing, corrosive, or with high thermal variation. The choice of sheath material depends on the ambient gas, temperature, and probe configuration. Recommendations are based on DIN 43724. Standard dimensions are available on stock, but custom sizes are also available upon request.

APF710 tubes, made from high-purity alumina, offer exceptional resistance to temperature and corrosion. CRE610, made from aluminum silicate, is recommended up to 1400°C. The more porous CRP530 is used up to 1350°C.
Silicon carbide (SiC) versions are also available in various configurations, such as recrystallized or nitrogen-containing. These tubes are suitable for inert, oxidizing, and corrosive atmospheres and can withstand temperatures up to 2000°C, depending on the version.

Open both ends tubes are available in CRE610 and APF710 versions, depending on the required temperatures. They are available in several geometries: lengths, diameters, and number of holes.