Tantalum (Ta) Capillary | Tantalum (Ta) Micro Tube


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Tantalum capillary, also named tantalum micro tubing and tantalum fine tube, is the tantalum tube with very small dimensions. It can be used as the filament lead tube of the cathode insulator in an x-ray tube, as a marker band in medicine, and can be used as a thermocouple tube.

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Data sheet

Purity99.95% ,99.99%
MaterialTa, Ta10W, Ta2.5W, Ta40Nb,UNS R05200, R05400, R05255, R05252, R05240
ConditionAnnealed, Unannealed

More info

Tantalum Capillary tube is often used to make medial instruments, special instruments, etc. HM provides high-quality Tantalum (Ta) Capillary at a competitive price, which can be used in scientific research or industrial production. The most common applications of tantalum capillary tubes are tantalum marker bands and thermocouple protection tubes.

Tantalum fine tube - heegermaterials.comtantalum micro tubing-heegermaterials

For larger Tantalum tubing, please check tantalum & tantalum alloy tubes.

Tantalum Capillary Tubes

  • Outer diameter range: 0.2-8mm
  • Max accuracy of outer diameter: +/-0.003mm
  • Range of tube wall thickness:0.015-0.5mm
  • Max accuracy of wall thickness: +/-0.005mm
  • Max accuracy of length: +/- 0.05mm

After completion, watch with a microscope, Tantalum capillary tube has features of average metal gloss, no color changed by hydrogenation and oxidation, no scratch, no deformation, no skin needling, etc.

Tantalum Capillary / Tantalum Micro Tube Application

  • Used in laboratory equipment.
  • Used as a substitute for platinum.
  • Used as the filament lead tube of the cathode insulator in an x-ray tube. 
  • Used in liquid tantalum electrolytic capacitors.

Tantalum Capillary Chemical Composition

Elment C O N H Fe Mo Nb Ni Si Ti W
R05400 (%,Max)
R05255 (Ta10W) (%,Max)0.010.0150.010.00150.–11.0
R05452 (Ta2.5W) (%,Max)0.010.0150.010.00150.–3.5
R05240 (Ta-40Nb) (%,Max)–

Tantalum Capillary Packing

Our Tantalum capillary will be packed in the wooden case supported with soft materials to ensure that the products thus packed will not shift inside the cases.

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