Steel aluminum composite finned tube
Steel aluminum composite finned tube supplier
China Steel Aluminum Composite Finned Tube Manufacturer
We specialize in manufacturing a wide range of steel aluminum composite finned tube, including integral finned tubes, extruded finned tubes, and bimetallic finned tubes. Our products are designed for various heat exchanger applications, such as condensers, evaporators, boilers, and chillers, ensuring efficient heat transfer and durability in demanding industries like HVAC, energy, and petrochemicals.
Technical Specification:
Tube Outer Diameter (OD): 10 mm – 57 mm
Tube Wall Thickness: 1.0 mm – 4.0 mm
Fin Material: Aluminum, Copper
Fin Outer Diameter (OD): 25 mm – 82 mm
Fin Thickness: 0.2 mm – 1.0 mm
Fin Height:Up to 18 mm
Fin Pitch: 1.8 mm – 8 mm
Maximum Working Temperature: Up to 250°C
Steel Aluminum Composite Finned Tube Parameter
| Code | Plain End | Plain End | Plain End | Finned Section | Finned Section | Finned Section | Finned Section | Nominal (m2/m) | Surface Area Ratio |
|---|---|---|---|---|---|---|---|---|---|
| CTHF | Outside Diameter(mm) | Inside Diameter(mm) | Nominal Wall(mm) | Outside Diameter(mm) | Fin Height (mm) | Min Wall Under Fins(mm) | Fin Per Inch(mm) | Ourside Surface Area | Outside to Inside |
| 39-19-7 | 19 | 16 | 1.5 | 39 | 9 | 1.6 | 7 | 0.535 | 10.64 |
| 45-23-7 | 23 | 19.8 | 1.6 | 45 | 10.5 | 1.7 | 7 | 0.704 | 11.32 |
| 46-25.9-5 | 25.9 | 22.4 | 1.75 | 46 | 9.5 | 1.85 | 5 | 0.535 | 7.6 |
| 47-25.9-7 | 25.9 | 22.4 | 1.75 | 47 | 10.5 | 1.85 | 7 | 0.75 | 10.65 |
| 48-25.4-7 | 25.4 | 22 | 1.7 | 48 | 10.5 | 1.8 | 7 | 0.76 | 11.13 |
What is steel aluminum composite finned tube?
Steel aluminum composite finned tubes are specialized components used primarily in heat exchangers to enhance heat transfer efficiency. These tubes consist of two different metals, typically an inner base tube made from materials like copper, stainless steel or carbon steel, and an outer layer of aluminum that is finned through a process known as cold plastic deformation.
Advantages Of Steel aluminum composite finned tube
Corrosion Resistance: The design avoids direct contact between the steel tube and the air, which improves corrosion resistance.
Efficient Heat Transfer: The aluminum fins increase the surface area, facilitating faster heat transfer. The combination of steel and aluminum results in excellent heat transfer performance.
Cost-Effectiveness: Using steel-aluminum composite finned tubes is a cost-effective choice for situations where air is heated by steam or thermal oil.
Structural Integrity: The steel tube provides pressure resistance, while the aluminum fins enhance heat transfer. The composite structure provides high strength.
Low Thermal Resistance: The advanced composite process ensures minimal thermal resistance. They have low contact thermal resistance
Manufacturing Process Of Steel aluminum composite finned tube
Applications Of Steel aluminum composite finned tube
Steel aluminum composite finned tubes are widely utilized across several industries due to their efficiency in heat exchange and durability. The most common industries that employ these specialized components include:
- Power Generation: Used extensively in electric, nuclear, thermal, and geothermal power plants for heat exchangers.
- Petroleum and Petrochemical: Essential in processes involving oil refining, gas treatment, and chemical production.
- Chemical Processing: Employed in systems such as condensers and evaporators, particularly in high-corrosive environments.
- Food Processing: Utilized in refrigeration and heating applications to ensure safe food handling and processing.
- HVAC Systems: Commonly found in air conditioning units and heat recovery systems to optimize energy use.
- Marine Applications: Suitable for seawater desalination and other offshore operations where corrosion resistance is crucial.
- Industrial Applications: Used in steel mills, incinerators, and gas compression facilities for efficient thermal management.
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Frequently Asked Questions
About Steel aluminum composite finned tube For Heat Exchangers
What are the characteristics of steel-aluminum composite finned tubes?
Key features include being lightweight, having good heat transfer performance, small air resistance, low contact thermal resistance, a large heat dissipation area, and a long service life. These tubes resist dust and scaling. The perfect bond between the fin and tube improves heat transfer efficiency and corrosion resistance.
What are the applications of steel-aluminum composite finned tubes?
What are the manufacturing processes for finned tubes?
What are the typical dimensions of steel-aluminum composite finned tubes?
While dimensions can vary, a typical fin thickness is 0.4mm. Sunny Steel offers customization, and they can adjust the sheet height and spacing according to customer requirements.
How do you choose the right aluminum finned tubes for a project?
Selecting the optimal aluminum finned tube requires balancing thermal performance with constraints like pressure drop limitations, material compatibility, and budget.
What are the advantages of using composite finned tubes?
Composite finned tubes offer a close combination, small thermal resistance, good heat transfer performance, high strength, small flow loss, and strong corrosion resistance.
Can you design custom Steel aluminum composite finned tube for specific heat exchanger applications?
Absolutely. We specialize in custom designs based on your heat exchanger requirements. Our engineering team will work with you to optimize the design for maximum efficiency and performance.
What is the maximum operating temperature for your steel aluminum composite finned tube ?
Our bi-metal fin tubes can operate at temperatures up to 300°C, depending on the materials used. For higher temperature applications, we recommend stainless steel or copper-nickel tubes.
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