Wound L Fin Tube ASME SA209 Welded Base Tube With AL1060 Fins In Air Cooler

ASME SA209 is a specification by the American Society of Mechanical Engineers for seamless carbon-molybdenum alloy-steel tubes, primarily used in boilers, superheaters, and heat exchangers. These tubes are designed for high-temperature and high-pressure environments.

The base tube is made from a carbon-molybdenum (C-Mo) alloy steel, known for its strength, creep resistance, and durability under thermal stress. Common grades under SA209 include T1, T1a, and T2, which vary in molybdenum content.

Chemical Composition:

Tube Material (AL1060):

• Aluminum (Al): ~ 99.6% (main component)

• Silicon (Si): ~ 0.25%

• Iron (Fe): ~ 0.35%

• Copper (Cu): ~ 0.05%

• Manganese (Mn): ~ 0.05%

• Magnesium (Mg): ~ 0.05%

• Zinc (Zn): ~ 0.03%

• Titanium (Ti): ~ 0.03%

Physical Properties:

• Density: ~ 2.70 g/cm³ (for AL1060 aluminum)
• Thermal Conductivity: ~ 237 W/m·K (for AL1060 aluminum)
• Melting Point: ~ 660°C (1220°F) (for aluminum)
• Tensile Strength: ~ 55 MPa (for AL1060 aluminum)
• Yield Strength: ~ 30 MPa (for AL1060 aluminum)
• Specific Heat: ~ 0.900 J/g·K
• Thermal Expansion: ~ 23.1 × 10^-6 /°C

Mechanical Properties:

• Tensile Strength: The tensile strength of the AL1060 aluminum is typically around 55 MPa, meaning it can withstand moderate stress.

• Yield Strength: The yield strength of AL1060 is approximately 30 MPa, which is the stress at which the material begins to deform permanently.

• Elongation: Aluminum alloys such as AL1060 are highly ductile, allowing for easy forming and shaping into fin tubes without cracking.

Applications:

1.Heat Exchanger Systems:

• Industrial Heat Exchangers: Used in cooling systems, boilers, and other systems where heat needs to be dissipated effectively.

• Air Conditioning and Refrigeration: In AC units and refrigeration systems, the enhanced surface area provided by the L-type fins helps in faster heat dissipation, improving system efficiency.

• HVAC Systems: Used in HVAC (Heating, Ventilation, and Air Conditioning) systems for air cooling and heating.

2.Radiators:

In systems requiring radiators for cooling, the L type fin tube is commonly employed in automotive radiators, electric generator cooling systems, and other applications that require heat dissipation.

3.Boilers and Steam Systems:

In boiler systems where hot fluids or gases are used to transfer heat, L type fin tubes help in increasing the contact area for heat transfer, making the system more efficient.

4.Automotive Applications:

L Type fin tubes are used in automotive cooling systems, where the need for compact heat exchangers is essential for improving engine performance by keeping temperatures under control.