A179 Carbon Steel Extruded Aluminum Finned Tube for Air Cooler and Condenser

Product Specification

High-Efficiency Extruded Finned Tube: ASTM A179 Carbon Steel Base & Aluminum Fin

1. Product Introduction: ASTM A179 Extruded Aluminum Finned Tube

The ASTM A179 Extruded Aluminum Finned Tube is a premium bimetallic heat transfer component designed for demanding industrial environments. By combining the excellent mechanical strength of the ASTM A179 seamless carbon steel base tube with the superior thermal conductivity of the Aluminum fin, this composite finned tube delivers maximum heat transfer efficiency. It is the preferred choice for air cooled heat exchangers, condensers, and heavy-duty HVAC systems, ensuring long-term durability and resistance to atmospheric corrosion.

2. Structure & Extrusion Process of A179 + Aluminum Fin Tubes

Our extruded finned tubes feature a highly robust structure, manufactured through an advanced cold rotary extrusion process.

• The Base Tube (ASTM A179 Carbon Steel): Serves as the core pressure-bearing component. ASTM A179 seamless cold-drawn low-carbon steel guarantees excellent structural integrity under high pressure and temperature.

• The Fin Material (Aluminum 1060 / 1100): Provides exceptional heat dissipation capabilities while keeping the overall weight light.

• The Extrusion Process (Bimetallic Integration): Unlike standard embedded fins (G-fin) or wrapped fins (L-fin), our extruded finned tubes are formed by sliding an outer aluminum muff tube over the inner A179 steel tube. Through high-pressure rotary extrusion, the aluminum is squeezed into helical fins. This cold rolling process forms a perfect, gap-free bimetallic bond between the aluminum and the carbon steel base tube, effectively preventing bi-metallic corrosion and eliminating contact thermal resistance.

3. Chemical Composition: ASTM A179 Base Tube & Aluminum Fins

Data accuracy is vital for your engineering design. Below is the precise chemical composition of our standard A179 carbon steel base tube and Aluminum fins.

Table 1: Chemical Composition of ASTM A179 Carbon Steel Base Tube (%)

Table 2: Chemical Composition of Aluminum Fin Material (AL 1060) (%)

4. Dimensional Tolerance Range for A179 Extruded Aluminum Fin Tubes

We strictly adhere to international manufacturing standards. Below is our standard dimension and tolerance range, customizable upon your specific drawing requirements.

Table 3: Dimensions & Tolerances

5. Performance Advantages of ASTM A179 Extruded Aluminum Finned Tubes

Choosing the extruded bimetallic fin structure over other fin types offers several unmatched engineering benefits:

• Zero Contact Thermal Resistance: The seamless bond between the A179 steel and Aluminum ensures continuous heat transfer without any air gaps, even under thermal cycling.

• Maximum Corrosion Protection: The extruded aluminum base completely encapsulates the A179 carbon steel tube, preventing atmospheric corrosion and protecting the steel core from moisture and chemical exposure.

• High Mechanical Strength: The rigid extruded aluminum fin is highly resistant to mechanical deformation. It can withstand high-pressure water washing during maintenance without fin damage.

• High-Temperature Resistance: Safe to operate continuously at temperatures up to 300°C (572°F).

6. Industrial Applications for A179 Extruded Aluminum Finned Tubes

Due to their durability and thermal efficiency, our ASTM A179 Carbon Steel + Aluminum Extruded Finned Tubes are widely used across global heavy industries:

• Petrochemical Refineries: Used extensively in air cooled heat exchangers (ACHE) and condensers.

• Power Generation Plants: Applied in steam condensers, feed-water heaters, and boiler systems.

• HVAC & Refrigeration: Ideal for large-scale industrial air conditioning, evaporators, and commercial chillers.

• Food Processing & Chemical Plants: Utilized in drying systems, gas coolers, and process temperature control units.

7. Our Expertise & Advantages in Supplying A179 Extruded Finned Tubes

As a leading manufacturer and exporter of heat exchanger tubes, we are committed to solving your global sourcing challenges:

• Strict Quality Control (QC): Every ASTM A179 base tube undergoes 100% Hydrostatic testing and Eddy Current Testing (ECT) before extrusion. We perform rigorous pull tests to guarantee the bond strength between the steel and aluminum.

• Custom Fabrication: We do not just sell standard sizes. From customized Fins Per Inch (FPI) to specific bare tube ends, we manufacture strictly according to your engineering drawings.

• Global Export Experience: With over a decade of export experience, we provide professional seaworthy packing (iron frames, wooden boxes with desiccants) to ensure your finned tubes arrive globally without bending or oxidation.

• Cost-Effective & Timely Delivery: Factory-direct pricing with optimized production lines allows us to handle bulk orders with short lead times, keeping your project perfectly on schedule.

Contact our engineering sales team today to get a quick quote for your ASTM A179 Extruded Aluminum Finned Tube requirements!