Finned Tube----Square Fin Tube, Rectangular fin tubes

Square Fin Tube


Finned Tube----Square Fin Tube, Rectangular fin tubes 

Base Tube O.D

Base Tube Thickness (mm)

Fin Height (mm)

Fin Thickness(mm)

Fin Pitch(mm)

25.4 mm ~50.8 mm

2.5 mm ~5.0 mm

0.5 mm ~20.0 mm

0.5 mm ~3.0 mm

5 mm ~ 25.4 mm

Base Tube Material

Fin Material

Tube Length (Mtr)

Carbon Steel ,Alloy Steel ,Stainless Steel

Carbon Steel ,Alloy Steel ,Stainless Steel

≤ 15Mtrs


Finned Tube----Square fin tube, H fin tuberectangular fin tubesdouble H fin tubes

H fin tube known as square fin tube, There are two type of H fin tubes, one type with single tube, normal called square fin tube, the other with Double tube, normal called rectangular fin tubes. and also manufactured as per customers requirements. Due to rectangular shapes, which can offer large surface area compared to the Spiral Finned tubes. Due to larger surface area available, these finned tubes are used mostly in Air Heating application to reduce the overall size of the equipment.

H fin tube is a kind of boiler parts, to have two steel circular symmetry to be welded on fluorescent tubes to form fins positive shap much like letter "H", so called H-fin tube. H-economizer widely used in utility boilers, industrial boilers, marine power, such as the tail of heat exchanger components.



H-economizer two rectangular fin, similar to a square, its edge length for the fluorescent tubes of 2-fold, an expansion of the heating surface. 

H-economizer flash resistance welding processes used, the welding seam after the high rate of fusion, weld tensile strength, and has good thermal conductivity. H-economizer can also manufacture dual tube "double H" type fin tubes, its rigid structure, and can be applied to a longer tube row occasion.


Max. Working Temperature:  300 °C

Atmospheric Corrorsion Resisitance: OK

Mechanical Resistance: Good

Fin Material: Copper, Aluminum, carbon steel, stainless steel

Base Tube materials: Any material available, such as Carbon steel Tube, A179, A192, A210, stainless tube A269/A213 T5 T11 T22 304 316

Rectangular Finned Tubes


Single pipe square finned tubes and twin pipe rectangular finned tubes are also manufactured as per customers’ requirements. These are particularly suitable for dust laden exhaust gases, e.g. for economizers in coal and oil fired units or waste incinerators.


Key Words: Finned Tube, Fin Tubes, Embedded Fin tubes,  G type Finned tube, L Fin tube, "LL" type fin tubes, KL fin tubes, knurled finned tubes, Tubos Aletados