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ASME SA213 T12 SMLS Alloy Steel Tube Aluminum Fin HFW Finned Tube for Petrochemical Industry
HFW Solid Finned Tubes stands for High Frequency Welded Spiral
Solid Finned Tubes.
Spiral finned tubes offer designers a thermally efficient and
compact design solution for a range of heat exchangers using pure
flue gases. Spiral finned tubes are available in both solid and
serrated versions.
Spiral finned tubes are manufactured by spirally wrapping
continuous ribs around the tube. High-frequency resistance welding
is typically used at 400 kHz. The fins are wrapped around the tube
and the weld is continuous. The fins are spirally wrapped around
the tube and continuously welded to the base tube along the root of
the spiral using a high frequency electrical process. The fin strip
is subjected to tension and lateral restraint as it is formed
around the tube, thus ensuring that the fin strip is in firm
contact with the surface of the base tube. The gas metal arc
welding process is utilized to continuously weld the ribs at the
point where they begin to bend around the pipe diameter.
For a given size of pipe or tube, the required heat transfer area
per unit length of pipe can be achieved by determining the
appropriate fin height, fin thickness and/or number of fins per
meter of length.
HFW Solid Finned Tube
This configuration of welded steel finned tubing can be used for
all practical heat exchanger applications and is particularly
suitable for high temperature and high pressure applications. The
important features of this configuration are the efficient and
effective connection of the fins to the tube under all temperature
and pressure conditions and the ability to withstand high
temperatures on the fin side.
The continuous helical fin is attached to the main pipe by high
frequency electro resistance welding to achieve an efficient and
thermally reliable bond.
Technical Details/Base Tube Details
Tube Diameter : 20 mm OD Min to 219 mm OD Max.
Tube Thickness : Minimum 2 mm up to 16mm
Tube Material : Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, duplex Steel, Super Duplex Steel, Inconel, High Chrome High Nickle & Incolloy, CK 20 material and some other material.
Fin Details
Fins Thickness : Min. 0.8 mm to Max. 4 mm
Fins Height : Min 0.25” (6.35 mm) To Max.1.5” (38 mm)
Fin Density : Min 43 Fins Per Meter To Max. 287 Fins Per Meter
Material : Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, Duplex Steel and Incolloy.
Size and material
Tube O.D.: | 16 to 273 (mm) | 3/8” to 10”(NPS) |
Tube Wall Thk.: | 2 to 28.6 (mm) | 0.08” to 1.1” |
Tube Length: | ≤28,000 (mm) | ≤92 ft |
Fin Thk.: | 0.5 to 3.5 (mm) | 0.02” to 0.14” |
Fin Height: | 8 to 35 (mm) | 0.31” to 1.3” |
Fin Pitch: | 3 to 333 FPM | 1 to 8 FPI |
Fin Type: | Solid, “U”or“V” Serrated | |
Fin Material: | C.S. (most common grade: 08F, SPCC) | |
Tube Material: | C.S. (most common grade: A106 Gr.B, A210, A192) |
For a rapid quotation, plz send with following requirement
Number of pieces,
base tube: Diameter, thickness, length and material specification.
Fins: material specification, type (solid or serrated), height, thickness, spacing, finned length and unfinned sections. Weld prep details if required.
Delivery period required.