4.1" OD larger diameter Alumina tube is made in USA with high purity 99.8% (998) Al2O3 material.998 alumina tube can be used at operating temperatures to 1750 oC in both oxidizing and reducing atmospheres. Tubes have been evacuated to 10-7 Torr at room temperature. 998 alumina tube proves inert to carbon and refractory metals in many severe situations:
Purity
Al2O3 > 99.8%
Density
> 3.91 g /cm3
I.D
3.625 +/- 0.04" (92.3 +/- 1 mm)
O.D
4 +/- 0.04" (101.7 +/- 1 mm)
Length
40" (1000 mm)
Max. working temperature
1750 oC
Warning
•Please don't use alumina tube under vacuum at temperature > 1500 oC •Please always keep the heating or cooling rate less than 5 oC/ minute. •Please keep theral gradient less than 100 oC/ minute to avoid cracking. •Please handle the tube carefully. No any warranty for the tube.
Application Notes
•For vacuum sealing, please choose vacuum flanges at the related product below. •Please click here to learn how to use and maintain Alumina tube in MTI high temperature tube furnace.
