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4" x 40" (101 OD x 90 ID x 1000mm L) Alumina Ceramic Tube - EQ-TA-101D-M1000

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Item Number: TA101D1000

4" OD larger diameter Alumina tube with high purity 95% 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 make sure the specification of the tube meets your need before making a purchase. Since Nov 10, 2016, we have no longer accept return delivery of any tubes due to the fragile nature of the materials. All tubes are not refundable, not exchangeable, nor covered under the warranty (Consumables). We apologize for the inconvenience. Please check the package for damages before accepting the delivery. For more information or damaged upon arrival please contact us.


Purity Al2O3 > 95%, 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)

  • Do NOT use an alumina tube under a vacuum at a temperature > 1500 °C.
  • Max heating or cooling rate < 5°C/ minute.
  • Please keep the thermal gradient less than 100°C/ inch to avoid cracking.
  • Please 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
Ceramic Crucibles ( Alumina, Quartz and Zirconia etc )

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 and us.

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