Extruded Finned Tube - ASTM A179 Carbon Steel Base / Aluminum 1060 Fins for Heat Exchangers

Extruded Finned Tubes: ASTM A179 Carbon Steel Base with AL1060 Aluminum Fins | High-Efficiency Heat Transfer

Professional Product Description

1. Advanced Material Synergy

Our extruded finned tubes integrate ASTM A179 seamless carbon steel base tubes with high-purity AL1060 aluminum

fins through a hot extrusion process. This creates a metallurgical bond that maximizes thermal conductivity (159 W/m·K

for Al) while maintaining structural integrity under high-pressure environments.

2. Precision Engineering & Tolerances

3. Chemical Composition Compliance

Base Tube Material (ASTM A179):

Fin Material (AL1060):

4. Critical Application Domains

• Power Generation:

• Heat Recovery Steam Generators (HRSGs)

• Economizers & Air Preheaters (operating temp: 150-400°C)

• HVACR Systems:

• Chiller bundles with refrigerant R134a/R410A

• Air-cooled condensers (ambient temp: -40°C to +50°C)

• Industrial Processes:

• Waste heat recovery units (flue gas corrosion resistance)

• Petrochemical reactor cooling jackets

• Renewable Energy:

• Biomass boiler superheaters

• Geothermal brine heat exchangers

5. Technical Advantages Over Competitors

• Thermal Performance:

Fin efficiency >92% at 250°C due to extrusion bonding (vs. 70-85% in L-footed tubes)

• Mechanical Reliability:

Withstands 6.9 MPa operating pressure (ASTM A179 yield strength: 180 MPa min)

• Corrosion Protection:

Al₂O₃ layer formation on fins (thickness: 2-3 nm) prevents acid dew point corrosion

• Customization Capability:

Fin density: 5-11 FPI (fins per inch) | Base tube OD: 15.88 - 50.8 mm