4" x 40" (101 OD x 90 ID x 1000mm L) Alumina Ceramic Tube - TA101D1000

   4" OD larger diameter Alumina tube with high purity 99% Al₂O₃ material. It can be used at operating temperatures to 1700 ^oC in both oxidizing and reducing atmospheres. Tubes have been evacuated to 10^-7 Torr at room temperature.
Purchase Notes: Please ensure the tube specification meets your needs before making a purchase. Since Nov 10, 2016, we have no longer accept the return delivery of any tubes due to the fragile nature of the materials. All tubes are non-refundable, non-exchangeable, and not covered under the warranty (Consumables). We apologize for the inconvenience. Please check the package for damage before accepting the delivery. For more information or if damaged upon arrival, please contact us immediately

SPECIFICATIONS

Purity	Al2O3 > 99%, SiO2 < 0.25%, CaO+MgO < 0.3%
Density	> 3.8 g /cm3
I.D	3.625+/-0.08"(90+/-2mm)
O.D	4+/-0.04" (101.7 +/-2mm) Note: The outer diameter of the center of the tube is slightly longer.
Length	40 " (1000 mm)
Detailed dimension drawing
Max. working temperature	1700 °C (3092°F) under flowing inert gas conditions with max. pressure  < 0.02Mpa
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 an Alumina tube in the MTI high-temperature tube furnace. To get a 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 one crucible boat:

Inspect your delivery:
Please check the package for damage before accepting delivery.
Should damages be found, please keep all packaging materials, take pictures, and report immediately to the carrier and us.