ASTM A179 Carbon Steel Fin Tube Extruded Type With Al1060 For Air Cooled Chiller
ASTM A179 Carbon Steel Fin Tube Extruded Type With Al1060 For Air Cooled Chiller
Product Overview
The extruded fin tube is manufactured by inserting a carbon steel seamless tube (ASTM A179) into a pure aluminium Al1060 sleeve, followed by a high-pressure extrusion process that forms integral fins from the aluminium sleeve. This method ensures a perfect metallurgical bond between fins and tube, eliminating air gaps and providing maximum thermal conductivity.
Chemical Composition of ASTM A179 (Base Tube)
| Element | C | Mn | P (max) | S (max) |
|---|---|---|---|---|
| Content (%) | ≤ 0.06 | 0.27–0.63 | ≤ 0.035 | ≤ 0.035 |
Mechanical Properties of ASTM A179
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa |
| Yield Strength | ≥ 180 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 72 HRB |
Advantages
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Superior heat transfer efficiency due to firm aluminium-to-steel bonding.
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Lightweight and high conductivity of Al1060 provides excellent thermal performance.
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Corrosion protection → Aluminium fins shield the carbon steel tube from environmental damage.
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Durability → Withstands vibration, thermal cycling, and long service periods.
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Cost-effective → Combines low-cost carbon steel tubing with high-conductivity aluminium fins
Applications in Air Cooled Chiller
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Air cooled chillers in HVAC and industrial cooling systems
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Air cooled condensers in power plants and chemical plants
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Process gas coolers in petrochemical industries
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Cooling sections in refinery air coolers and compressor stations
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