3.15" OD larger diameter Alumina tube is made of high purity 95% Al₂O₃ material. Such alumina tube 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.

SPECIFICATIONS

O.D	3.15" +/- 0.04    (80.4 +/- 1 mm)
I.D	2.93" +/- 0.04    (70 +/- 1 mm)
Tube Length	1000 mm
Detailed dimension drawing
Max. Working Temperature	1700 °C (3092°F)
Purity	> 95%
Warning	Please don't use an alumina tube under a vacuum at a temperature > 1500 oC. Please always keep the heating or cooling rate less than 5oC/ minute. Please keep the heating gradient less than 10oC/ minute to avoid cracking.
Application Notes	Please click the picture below to see how to install the processing tube and thermal block, as well as the flange To get longer tube service life, Please use a quartz or an alumina crucible to carry samples, instead of loading samples directly inside the tube, please click the picture below to choose one crucible boat:

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