DURA-J Micro Finned Tube

DuraFin Tube’s solder coated micro finned tubing provides heat transfer in a variety of cryogenic and biomedical applications. This hypodermic needle-sized finned tube is offered in tube OD’s as small as 0.015″, with fin counts as high as 125 fins per inch.


Fins Per Inch

90-125 FPI

Fin Height

0.005″ to 0.015″ based upon tube OD

Fin Material


Tube OD

0.015″ OD and larger

Tube Material

Cu, CuNi, SS

Max Process Temperature

450 °F