ASME SA179 L Type Finned Tube with Al1060 Fins For Industrial Boilers & Economizers
ASME SA179 L Type Finned Tube with Al1060 Fins | Industrial Boilers & Economizers
Product Overview
Our ASME SA179 L Type Finned Tube with Al1060 Fins is engineered for high-efficiency heat transfer in industrial boilers and economizers. Combining a precision cold-drawn carbon steel base tube (ASME SA179) with high-purity aluminum fins (Al1060), this finned tube delivers superior thermal performance, robust mechanical bonding, and long-term reliability under fluctuating temperatures and pressures. The L-type embedded fin design eliminates contact thermal resistance, ensuring optimal heat recovery and energy savings for industrial boiler systems.
Key Components & Materials
1. Base Tube: ASTM A179 (Seamless Cold-Drawn Low-Carbon Steel)
Chemical Composition (Heat Analysis)
| Element | Content (%) |
| Carbon (C) | 0.06 – 0.18 |
| Manganese (Mn) | 0.27 – 0.63 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 0.25 (typical, not mandatory per all specifications) |
Source references: ASTM A179 / ASME SA179 standard requirements
Note: The material does not have specified requirements for Chromium (Cr), Molybdenum (Mo), Nickel (Ni), Copper (Cu), or Vanadium (V) under this standard .
Mechanical Properties
| Property | Value (Minimum) |
| Tensile Strength | 325 MPa (47,000 psi) |
| Yield Strength | 180 MPa (26,000 psi) |
| Elongation | 35% (in 2 inches or 50 mm) |
| Hardness | ≤ 72 HRB (Rockwell B) |
Source references: ASTM A179 / ASME SA179 standard requirements
2. Fins: AL1060 (Commercial Purity Aluminum)
Superior thermal conductivity (~234 W/m·K), lightweight, naturally corrosion-resistant, and cost-effective.
99.6% pure aluminum with high thermal conductivity (222 W/m·K); lightweight, ductile, and vibration-resistant; forms a durable metallurgical bond with the base tube.
3. Fins Type: L type
The fin root is shaped as an "L" and tightly wrapped around a pre-grooved tube surface, ensuring stable mechanical contact and efficient heat transfer.
Why Choose ASME SA179 L Type with AL1060 Fins?
- Enhanced Heat Transfer Efficiency
- The high thermal conductivity of AL1060 aluminum fins significantly increases the overall heat transfer coefficient, allowing for smaller heat exchanger footprints and lower energy consumption.
- Reliable Mechanical Bonding
- The L-type mechanical winding process creates a strong, durable bond between the fin and the tube. This design withstands thermal cycling and vibration better than some adhesive-based alternatives.
- Corrosion Resistance in Normal Atmospheres
- AL1060 naturally forms a protective oxide layer, offering good resistance to atmospheric corrosion. The carbon steel base tube maintains robust mechanical strength under pressure.
- Economic and Flexible Manufacturing
- This finned tube type provides an excellent balance between performance and cost. Fin thickness, height, and pitch can be customized to meet specific thermal and aerodynamic requirements.
Typical Applications
- Air-cooled heat exchangers (ACHEs)
- Radiator coils for generator and compressor cooling
- Dry coolers and condensing units
- Industrial HVAC systems
- Heat recovery steam generator (HRSG) economizers
- Recommended Operating Limits
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