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High-frequency welded finned tube manufacturing

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ASTM B241 High-Frequency Welded Aluminum Finned Aluminum Tubes for Power Plants

 

Overview

 
TORICH Spiral Finned Tube, conforming to ASTM B241 standards, is a high-frequency welded aluminum finned tube manufactured using aluminum fins and an aluminum base tube, ensuring excellent heat transfer performance, lightweight construction, and corrosion resistance.
 
The fins are metallurgically bonded to the tube wall surface via high-frequency resistance welding, forming a continuous joint that maintains excellent thermal conductivity and mechanical strength even under harsh heat exchange conditions.
 
This all-aluminum design is widely used in air-cooled heat exchangers, air preheaters, and waste heat recovery systems in power plants.

 

Specification

 
Standard ASTM B241
Grades  Al 1060 Al 1100 Al 2014  Al 2024,etc.
Fin Type Solid 
Manufacturing Process High-Frequency Resistance Welding
Surface Finish Mill Finish / Anodized / Anti-Corrosion Coating
Tube OD 16 mm – 73 mm
Tube WT 1.0 mm – 4.0 mm
Fin Height 6 mm – 20 mm
Fin Thickness 0.8 mm – 1.2 mm
Fin Pitch 2.0 mm – 6.0 mm
Tube Length customized

 

Key Features

 
  • All-aluminum construction: Eliminates corrosion from dissimilar metals and provides a uniform coefficient of thermal expansion.
  • High thermal conductivity: Ensures excellent heat transfer efficiency, ideal for power plant air-cooled condensers and waste heat recovery systems.
  • Lightweight and easy to install: 70% lighter than equivalent steel tubing, reducing structural load and simplifying handling.
  • Corrosion and oxidation resistance: Naturally forms a protective oxide film, effectively resisting corrosion even in humid or marine environments.
  • High bonding strength: High-frequency welding creates robust, continuous fin-tube connections, ensuring long-term durability.
  • Energy efficiency: Maximizes heat exchange performance while minimizing energy loss during power generation.
 

Chemical Composition

 
Grade Si (%) Fe (%) Cu (%) Mn (%) Mg (%) Zn (%) Ti (%) Al (%)
Al 1060 ≤0.25 ≤0.35 ≤0.05 ≤0.03 ≤0.03 ≤0.05 ≤0.03 ≥99.6
Al 5052 0.25 0.40 ≤0.10 0.10 2.2–2.8 ≤0.10 ≤0.15 Balance
Al 6063 0.20–0.60 ≤0.35 ≤0.10 ≤0.10 0.45–0.90 ≤0.10 ≤0.10 Balance

 

Mechanical Properties 

 
Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Thermal Conductivity (W/m·K) Density (g/cm³)
Al 1060 ≥60 ≥30 ≥25 234 2.70
Al 5052 ≥215 ≥130 ≥10 138 2.68
Al 6063 ≥160 ≥110 ≥12 201 2.70

 

Steel Grade

 
  • Al 1060: High-purity aluminum with a purity ≥99.6%, possessing excellent thermal conductivity and corrosion resistance, suitable for low-pressure, high-thermal-conductivity systems.
  • Al 5052: A high-strength magnesium-aluminum alloy with excellent corrosion resistance, especially in marine and saltwater environments, suitable for power generation and marine applications.
  • Al 6063: Good mechanical strength and high surface finish, commonly used in medium- to high-strength heat exchanger systems.
 

Application

 
  • Power plants: Air-cooled condensers, air preheaters, waste heat recovery units, etc.
  • Petrochemical and refining systems: Air coolers and gas coolers for process systems.
  • HVAC and refrigeration: Condensers, evaporators, and air handling units.
  • Marine and offshore: Lightweight, corrosion-resistant heat exchangers for offshore platforms.
 

Possible Alternative Grades

 
  • Al 3003: Higher strength, good corrosion resistance, suitable for general heat exchangers.
  • Al 6061: High strength and moderate corrosion resistance, suitable for structural systems.
  • Al 5083: Excellent corrosion resistance in marine environments.
 

2

Spiral Finned Tube 1060 (4)Spiral Finned Tube 1060 (1)
 
Steel tube application

5

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

 

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.

 

Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

 

Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.

 

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Address: Ningbo, China


Main Product: Seamless Steel Tubes, Precision Steel Tubes, Hydraulic Cylinder Steel Tubes, DOM steel tubes , Stainless Steel Tubes, Special Pipe and Tubes

Disclaimer:
The information of 2bvideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of 2bvideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation. If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.
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