DURA-HB Bi-Metal Extruded High Finned Tube

The DuraFin® Bi-Metal High Finned Tube is made from extruded fins with a different alloy liner tube. The DURA-HB High Fins are up to 0.625″ (16mm) high. Extruded fin tubes are formed helically out of a aluminum alloy tube. The result is an integrally formed finned tube with an excellent fin-to-tube uniformity providing exceptional efficiency and longevity. Whether rough service, high temperatures, or corrosive environment, extruded fin tubes are a great option for heat exchanger applications. This type of product is excellent for warm air heating, air coolers, machinery coolers, power station coolers, and tower coolers.


Fins Per Inch

5-11 FPI

Fin Height

0.63″ max

Root Diameter

0.63″ to 1.5″ OD

Tube Material


Liner Tube Material

Cu, CuNi, Br, SS, CS, Ni, Ti

Max Process Temperature

570 °F