DURA-M Medium High Finned Tube

The DuraFin® Medium High Finned Tube is made from mono extruded copper alloys. The DURA-M fin height is within 0.140″ (3.5mm). Extruded fin tubes are formed helically out of a mono-metal 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. Medium High finned tubes can be annealed to a soft state for bending and coiling. This type of product is excellent for heating, refrigeration, machinery coolers, water-heaters, and boilers.


Fins Per Inch


Average Fin Height


Fin Diameter

0.625″ / 0.750″ / 0.875″

Tube Material

Cu, CuNi, Al

Max Process Temperature

Thermal Properties of Tube

Minimum Bend Center Line Radius

1D (1 x Fin Diameter)

*Annealed Temper (Grain Size)

Copper: 0.60 – 0.100 mm

CuNi: 0.40 – 0.065 mm

*Product comes typically in annealed temper. Can be ordered in “as finned” temper or a customer specific temper can be made upon request.