Aluminium Finned Tubes Manufacturer and Supplier in India
Aluminium Finned Tubes are a high performance heat exchanger component designed to provide maximum heat transfer of the base tube by increasing the external surface area of the tube. They are produced by mechanically bonding, extruding, embedding and winding aluminium fins onto the tubes from carbon steel, stainless steel, copper or alloy steel. The excellent thermal conductivity, light weight, corrosion resistance and long service life of the aluminium fins allow more rapid heat dissipation and lower energy usage. These tubes come in different types such as L-Type Tubes, Extruded Tubes, Embedded (G-Type)
Tubes, Helical Tubes, Knurled Tubes and Low-Finned Tubes. Amardeep Steel is a reliable manufacturer and supplier of Aluminium Finned Tubes in India, and supplies finned tubes of International Standard quality precision engineered for industrial demanding heat transfer applications with customized configuration of finned tubes with different combinations of material and various size and shape of fins.
Technical Data
Specifications of Aluminium Finned Tubes
| Specification | Details |
|---|---|
| Tube Material | Carbon Steel, Stainless Steel, Copper, Alloy Steel |
| Fin Material | Aluminum |
| Fin Type | L-Type, KL-Type, G-Type, Extruded, Embedded |
| Tube Diameter | 12 mm to 60 mm |
| Fin Height | Customized |
| Fin Thickness | Customized |
| Tube Length | Up to 15 meters |
| Manufacturing Standard | ASME, ASTM, DIN, BS, EN |
| Surface Finish | Polished / Mill Finish |
Chemical Compositions of Aluminium Finned Tubes
| Alloy Grade | Al (%) | Si (%) | Fe (%) | Cu (%) | Mn (%) | Mg (%) | Zn (%) | Ti (%) | Others (Each / Total) |
|---|---|---|---|---|---|---|---|---|---|
| 1100 (Fin Strip) | 99.0 min | 0.95 max (Si+Fe) | (With Si) | 0.05 – 0.20 | 0.05 max | — | 0.10 max | — | 0.05 / 0.15 max |
| 8011 (Foil / Strip) | 97.3 min | 0.50 – 0.90 | 0.60 – 1.00 | 0.10 max | 0.20 max | 0.05 max | 0.10 max | 0.08 max | 0.05 / 0.15 max |
Aluminium Finned Tubes Mechanical Properties
| Component Application | Alloy & Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation A5 (%) | Standard Manufacturing Function |
|---|---|---|---|---|---|
| Fin Strip Stock | AA 1100-O | 75 – 105 | 28 – 45 | ≥ 30 | Soft temper for embedded G-type or L-type tension fins |
| Fin Strip Stock | AA 1100-H14 | 110 – 145 | 95 – 125 | ≥ 9 | Half-hard temper for high-speed tension-wound L-fins |
| Foil / Extruded Fin | AA 8011-O | 110 – 140 | 40 – 75 | ≥ 20 | Extruded / bimetallic bared fins requiring deep formability |
| Formed Fin Strip | AA 8011-H14 | 140 – 175 | 120 – 155 | ≥ 6 | Formed fin strip offering enhanced stiffness against air erosion |
| Base Tube | AA 3003-O | 95 – 135 | 35 – 60 | ≥ 30 | Soft-temper base tube for mild pressure heat exchangers |
| Base Tube | AA 3003-H14 | 140 – 190 | 115 – 150 | ≥ 8 | Standard cold-worked core tube for air-cooled condensers |
| Base Tube (Extruded) | AA 6063-T6 | ≥ 190 | ≥ 160 | ≥ 10 | High thermal efficiency structural extruded bimetallic tube |
| Base Tube (High Strength) | AA 6061-T6 | ≥ 260 | ≥ 240 | ≥ 10 | High-pressure structural base tubing |
Dimensions Chart of Aluminium Finned Tubes
| Tube OD (in) | Fin Height (in) | Fin Thickness (in) | Fins per Inch / Pitch (Density) |
|---|---|---|---|
| 5/8" | 3/8", 1/2" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10, 11, 12 |
| 3/4" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10, 11, 12 |
| 1" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10, 11 |
| 1 1/4" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10 |
| 1 1/2" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10, 11 |
| 1 3/4" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10 |
| 2" | 3/8", 1/2", 5/8" | .015 / .016 / .020 | 4, 5, 6, 7, 8, 9, 10 |
Applicational Uses of Aluminium Finned Tubes
- Boilers
- Air Coolers
- Economizers
- Condensers
- HVAC Systems
- Petrochemical & Refinery Plants
- Power Generation Plants
- Marine & Offshore Equipment
Frequently Asked Questions
1. What are Aluminium Finned Tubes?
Aluminium Finned Tubes are heat exchanger tubes with aluminium fins attached to a base tube to increase surface area and improve heat transfer efficiency.
2. What are Aluminium Finned Tubes used for?
They are used in boilers, condensers, economizers, air coolers, HVAC systems, power plants, refineries, and other industrial heat exchangers.
3. How are Aluminium Finned Tubes manufactured?
They are manufactured by attaching aluminium fins to a base tube using methods such as extrusion, mechanical bonding, embedding, or winding.
4. What is the difference between aluminium finned tubes and copper finned tubes?
Aluminium finned tubes are lighter, more cost-effective, and offer good corrosion resistance, while copper finned tubes provide higher thermal conductivity but are heavier and more expensive.
5. Are Aluminium Finned Tubes corrosion resistant?
Yes. Aluminium naturally forms a protective oxide layer that provides excellent resistance to corrosion in many industrial and outdoor environments.
6. Can Aluminium Finned Tubes be used in marine applications?
Yes. They are suitable for many marine cooling and heat exchange applications when the correct base tube material and protective coatings are selected.
