A179 ASTM Embedded Finned Tube G Fin Tube With Aluminum Fins For Heat Exchanger
| Attribute | Value |
|---|---|
| Product Name | Embedded Finned Tube / G Finned Tube |
| Base Tube Specification & Material | ASTM A179 |
| Fin material | Aluminum |
| Fin Height | <17mm |
| Fin Thickness | ~0.4mm |
| Base Tube OD | 16~63mm |
| Fin Pitch | 2.1~5mm |
| Application | Chemical Equipment Heat Exchanger, Heat Exchanger, Air Cooler, Condensers, Evaporators |
ASTM A179 Embedded Finned Tube / G Finned Tube with Aluminum Fins For Heat Exchanger
An embedded finned tube is a type of heat exchanger tube designed to improve heat transfer efficiency by increasing the surface area in contact with the surrounding medium (e.g., air, gas, or liquid). It consists of a base tube (typically made of metal) with fins that are mechanically embedded or bonded to the outer surface of the tube. The fins are usually made of a highly conductive material, such as aluminum or copper, to enhance heat transfer.
- Base Tube Material: The core tube is made of ASTM A179 steel, known for its excellent thermal conductivity, strength, and corrosion resistance.
- Fins: The aluminum fins are embedded or attached to the outer surface of the steel tube, increasing surface area and improving heat transfer.
- Embedded Fins: The fins are mechanically bonded or welded to the tube, ensuring a strong and durable connection that withstands thermal cycling and mechanical stress.
- Enhanced Heat Transfer through increased surface area
- Durability from the steel-aluminum combination
- Lightweight construction compared to all-steel finned tubes
The chemical composition of ASTM A179 steel tubes is primarily low-carbon steel:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.06-0.18 |
| Manganese (Mn) | 0.27-0.63 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.035 max |
| Silicon (Si) | 0.10-0.35 |
The low carbon content ensures good weldability and formability, while manganese provides strength and toughness. Phosphorus and sulfur are minimized to avoid brittleness.
ASTM A179 tubes meet specific mechanical properties for heat transfer applications:
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 325 MPa (47,000 psi) |
| Yield Strength | ≥ 180 MPa (26,000 psi) |
| Elongation (in 2 in or 50 mm) | ≥ 35% (for wall thickness ≤ 0.015 in or 0.38 mm) ≥ 30% (for wall thickness > 0.015 in or 0.38 mm) |
| Hardness | Not explicitly specified, but typically low due to the low carbon content |
The ASTM A179 Embedded Finned Tube with Aluminum Fins is designed for applications where efficient heat exchange is critical. The combination of ASTM A179 steel and aluminum fins makes this product highly effective in various industrial applications.
1. Heat Exchangers
- Air-Cooled Heat Exchangers: Used in power plants, refineries, and chemical processing facilities
- Liquid-to-Air Heat Exchangers: For systems where liquid needs to be cooled by air
2. Condensers
- Power Plant Condensers: Condensing exhaust steam from turbines
- Refrigeration and HVAC Systems: Improving cooling efficiency in air conditioning units
3. Economizers
- Boiler Economizers: Recovering waste heat from flue gases
4. Oil and Gas Industry
- Gas Cooling Systems: Cooling natural gas in refineries
- Heat Recovery Systems: Recovering waste heat from process streams
5. Industrial Process Heating and Cooling
- Chemical Processing: In reactors and distillation columns
- Food and Beverage Industry: For production line temperature control
6. Renewable Energy Systems
- Biomass and Waste-to-Energy Plants: Heat recovery systems
- Geothermal Systems: Heat exchange in power generation
7. HVAC Systems
- Air Handling Units (AHUs): In heating and cooling coils
- Chillers: For heat exchange in water-cooled or air-cooled systems
8. Automotive and Aerospace
- Radiators and Oil Coolers: For vehicle and aircraft engine cooling
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