2" O.D alumina tube can be used at operating temperature up to 1700 oC in both oxidizing and reducing atmospheres. Tubes have been evacuated to 10-7 Torr. It proves inert for carbon and refractory metals in many severe situations.SPECIFICATIONS Purity Al2O3 > 99%, SiO2 < 0.25%, CaO+MgO < 0.3% O.D 2" +/- 0.05 (51.5 mm) I.D 1-2/3" +/- 0.05 (41.8 mm) Tube Length 700 mm Detailed dimension drawing Warning Do NOT use an alumina tube under a vacuum at a temperature > 1500 °C for a 1-3" tube, and < 1200 °C for a 3.15- 4“ tube Gas pressure shall be < 200 ccm Max heating or cooling rate < 5°C/ minute. Please keep the thermal gradient less than 100°C/ inch to avoid cracking in the multi-zone tube furnace Please use a crucible to separate parts from the inside surface of the tube to avoid thermal shock. Please handle the tube carefully. No warranty for the tube. Application Notes Please click here to learn how to use and maintain the Alumina tube in MTI high-temperature tube furnace To get longer tube service life, please use a quartz or alumina crucible to carry the sample, instead of loading the sample directly inside the tube, please click the picture below to choose a crucible boat Inspect your delivery:Please check the package for damages before accepting delivery. Should damages be found, please keep all packaging materials, take pictures, and report immediately to the carrier/MTI.
