| Fin Thickness | Minimum 0.8mm, Maximum 3 Mm |
|---|---|
| Fin Height | Minimum 0.25″(6.35 Mm), 1.5″(38 Mm) |
| Fin Density : | Minimum 46 Fins Per Meter, Maximum 287 Fins Per Meter |
| Material | Carbon Steel, Stainless Steel, Alloy Steel, Inconel, High Nickle & Incolloy |
| Tubes Diameter | 30mm Od Minimum, 220mm Od Maximum |
L Footed Fin Tubes Fin Wrapping Method Footed Fin Geometry and Thermal Expansion Compatibility
Timex Metals, who are known to provide effective and stable heat transfer system across industries and engineering projects, is a well-known L Footed Fin Tubes Manufacturer that provides high-performance products in the harsh operating environments. These tubes are most popularly applied in air-cooled heat exchangers, condensers, boilers, and systems which require high thermal conductivity. They are fabricated out of good materials like stainless steel, copper, and carbon steel which give them high level of resistance against corrosion and also prolonged service life. The L-shaped fins will be bonded to the base tube mechanically and, as a result, the surface contact will be enhanced, and the heat will be dissipated evenly. G Finned Tubes are also often used in heat exchange systems in applications where the thermal efficiency needs the same value and the mounting of the fins to the tube is stable.
L Footed Fin Tubes are designed to be highly consistent in their thermal operation and continuous operation in conditions of high temperature and are designed to survive in high temperature conditions and sustain a steady thermal operation with less maintenance demands. They can be used in the industrial sphere in the long term due to their efficient heat exchange capability despite harsh conditions of use. Welded Fin Tubes are used in processes when permanent fin bonding and greater mechanical strength is needed because they offer an excellent fin-to-tube bonding and life. All these finned tube solutions work to enhance energy efficiency, stable operation and reliable performance in all industrial heat transfer solutions.
L Footed Fin Tubes – Technical & Material Grade Specification Table
| Fin Material | Fin Grade | Base Tube Material | Base Tube Grade | Tube OD (mm) | Wall Thickness (mm) | Fin Height (mm) | Fin Pitch (FPI) | Max Service Temp (°C) | Approx. Weight (kg/m) |
|---|---|---|---|---|---|---|---|---|---|
| Aluminium | AA1100 | Carbon Steel | ASTM A179 | 25.4 | 2.11 | 10 | 10 | 260 | 2.10 |
| Aluminium | AA1100 | Carbon Steel | ASTM A192 | 31.75 | 2.77 | 12 | 9 | 260 | 3.15 |
| Aluminium | AA3003 | Carbon Steel | ASTM A106 Gr B | 38.10 | 3.05 | 14 | 8 | 260 | 4.25 |
| Aluminium | AA1100 | Stainless Steel | ASTM A213 TP304 | 25.4 | 2.11 | 10 | 10 | 280 | 2.40 |
| Aluminium | AA3003 | Stainless Steel | ASTM A213 TP316 | 31.75 | 2.77 | 12 | 9 | 280 | 3.55 |
| Aluminium | AA3003 | Alloy Steel | ASTM A213 T11 | 38.10 | 3.40 | 15 | 8 | 300 | 4.90 |
- Application/Heat Transfer Role: L-Footed Fin Tubes are used in air coolers, heat exchangers and gas to air heat transfer systems, where moderate temperatures are needed and surface heat dissipation is necessary. The L shaped base of the fin wraps tightly around the base tube which adds more effective heat transfer area without reducing flexibility in the design.
- Production Process and Type: They are produced as helically-wound fin tubes, with an aluminium strip of fin material wound around the tube with a sort of L-foot shaped forming a section of the base tube surface. Mechanical contact is achieved effectively in this process creating a good thermal conductor, and able to accommodate thermal expansion during operation.
- Grades of materials: Base tubes are usually supplied in the grades of Carbon Steel, Stainless Steel, Copper or Alloy Steel as per the ASTM standards and the fins are usually aluminium. The choice of the material depends on the temperature at work, pressure range, and heat exchanger system exposure to the environment.
- Other Performance considerations: Extruded fin tubes cost more than L-Footed Fin Tubes because they are used in lower and medium-temperature applications. They are easy to maintain, have an excellent resistance to corrosion in the open atmosphere, and are utilized in the power plant, refinery, and process industries where they need reliable performance of heat transfer.
Client Project Report of Fastener
| Product Supplied | Quantity | Cities (India) |
|---|---|---|
| L-Footed Fin Tubes for Air Cooling Units | 162 Pieces | Durgapur |
| L-Footed Fin Tubes for Heat Recovery Systems | 197 Pieces | Surat |
| L-Footed Fin Tubes for Refinery Process Equipment | 208 Pieces | Jamnagar |
| L-Footed Fin Tubes for Industrial HVAC Installations | 174 Pieces | Bhiwadi |
Type of Sub-products

Spiral L Foot Fin Tubes Spiral L Foot Fin Tubes
In this variation, the L-shaped fins are wound in a spiral pattern around the tube, enhancing heat exchange efficiency by increasing surface area contact. This design is ideal for systems requiring compact, high-efficiency heat exchangers, such as in HVAC and refrigeration applications.

Extended L Foot Fin Tubes Extended L Foot Fin Tubes
Extended L-foot fins are designed to provide greater surface area by lengthening the fins beyond the standard design. This variation allows for more efficient cooling or heating and is typically used in systems where space constraints are minimal, such as in larger power plant heat exchangers.
