A179 With B221 AL-1060 Extruded Fin Tube For Heat Exchanger
Price:
Negotiable
MOQ:
200~500 KGS
Delivery Time:
35-60 Days (Depend on Customer's Requirements)
Brand:
YuHong
Product Description
A179 With B221 AL-1060 Extruded Fin Tube For Heat Exchanger
Product Overview
An extruded finned tube is a type of heat exchanger tube where fins are mechanically bonded to the outer surface of a base tube through an extrusion process. This design significantly increases the tube's surface area, improving heat transfer efficiency in applications involving air or gas cooling/heating.
Manufacturing Process
- Base Tube Selection: Typically made of carbon steel (e.g., ASTM A179), stainless steel, or other alloys.
- Fin Material: Common choices include Aluminum 1060 (Al1060) for lightweight and corrosion resistance.
- Extrusion Process: The pressure and rotation mechanically bond the fin to the tube, creating a seamless, high-strength connection without soldering or welding.
Key Features
- Strong Bond: The fins are integrally attached, reducing the risk of loosening under thermal cycling
- High Heat Transfer Efficiency: More surface area = better heat exchange
- Lightweight (if aluminum fins are used)
- Corrosion-Resistant (if aluminum or stainless steel is used)
Comparison with Other Finned Tubes
| Type | Bonding Method | Strength | Thermal Performance | Cost |
|---|---|---|---|---|
| Extruded Fins | Mechanical (cold-welded) | Very Strong | Excellent | Moderate |
| Embedded Fins | Grooved & wrapped | Good | Good | Lower |
| Welded Fins | High-frequency welding | Strong | Very Good | Higher |
| L-Footed Fins | Crimped onto tube | Moderate | Good | Low |
Advantages Over Other Types
- Better heat transfer than wrapped or L-footed fins
- More durable than bonded fins (no adhesive failure risk)
- Suitable for high-temperature cycling (unlike soldered fins)
Base Tube Material: ASTM A179
Material: Low-carbon steel (seamless cold-drawn tubes)
ASTM A179 Material Composition (Weight %)
| Element | Composition Range |
|---|---|
| Carbon (C) | ≤ 0.06 - 0.18% |
| Manganese (Mn) | 0.27 - 0.63% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
| Silicon (Si) | ≥ 0.10% (typically 0.25-0.50%) |
| Iron (Fe) | Balance (≥ 98%) |
ASTM A179 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 325 MPa (47,000 psi) |
| Yield Strength | ≥ 180 MPa (26,000 psi) |
| Elongation (in 2") | ≥ 35% |
| Hardness (Rockwell B) | ≤ 72 HRB |
Key Characteristics
- Cold-drawn seamless tubes: Improved surface finish and dimensional accuracy
- High ductility (≥35% elongation) for bending/flaring without cracking
- Moderate strength: Suitable for low/medium-pressure heat exchangers
- Good thermal conductivity
- Corrosion resistance in certain environments
- Suitable for moderate-temperature applications (e.g., boilers, condensers, heat exchangers)
Comparison with Similar Standards
| Standard | Carbon % | Tensile Strength | Key Difference |
|---|---|---|---|
| ASTM A179 | 0.06-0.18% | ≥325 MPa | Cold-drawn, seamless |
| ASTM A192 | 0.06-0.18% | ≥325 MPa | High-temp boilers |
| ASTM A106 | 0.30% max | ≥415 MPa | Higher strength, piping |
Why ASTM A179 for Finned Tubes?
- Excellent thermal conductivity (better than stainless steel)
- Cost-effective vs. alloy tubes
- Compatible with aluminum fins (extrusion-friendly)
Applications
Power Plants & Energy Generation
- Air-Cooled Condensers (ACC)
- Heat Recovery Steam Generators (HRSG)
- Economizers
Petrochemical & Refineries
- Process Gas Cooling/Heating
- Lube Oil & Fuel Oil Coolers
HVAC & Refrigeration
- Chillers & Evaporators
- Heat Pumps
Industrial Process Heating/Cooling
- Drying Systems
- Chemical Reactors
Marine & Offshore
- Seawater Coolers
Renewable Energy
- Biomass & Waste Heat Recovery
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Sales Dept.