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‘L’ Foot Copper Fin Tube

‘L’ Foot Copper Fin Tube

The TORICH ‘L’ Foot Copper Fin Tube is a seamless tube manufactured according to ASTM B111 standards, made by spirally winding copper fins of the same material onto a copper base tube. The fins have L-shaped bases that tightly clamp the tube wall surface during winding, providing excellent thermal contact, strong adhesion, and good thermal cycling stability. It is widely used in heat exchangers, refrigeration and HVAC systems, air coolers/radiators, and other industries.
Tube Outer Diameter: 12 mm – 73 mm (customizable)
Tube Wall Thickness: 0.8–5 mm(customizable)
Fin Height: 6–15 mm(customizable)
Fin Thickness: 0.3-0.5 mm(customizable)
Fin Pitch: 8 – 14 fins per inch, or as customer's request
Tube Length: Can be customized upon request
Standard:ASTM B111 / ASME SB111, or as customer's request
Steel Grade:C10100 C10200 C10300 C10800 C12000 C12200 C14200 C19200 C23000 C28000 C44300 C44400 C44500 C60800 C61300 C61400 C68700 C70400 C70600 C70620 C71000 C71500 C71520 C71640 C72200

Product Introduction

Products Description

 

Our Advantages 


1. High Thermal Transfer Performance

  • Our 'L' Foot Copper Fin Tube is made of premium copper, one of the commercially available metals with the highest thermal conductivity. TORICH employs rigorous material control, employing spectrometer testing to ensure compliance with ASTM B111 standards.
  • The L-shaped base design maximizes the contact area between the fins and the tube, ensuring efficient heat exchange in air coolers, condensers, evaporators, and HVAC systems.

 

2. Strong Corrosion Resistance

  • Compared to finned tubes made of other materials, copper finned tubes exhibit strong corrosion resistance, rapidly forming a natural protective oxide layer upon exposure to air, water, or moisture.
  • Our 'L' Foot Copper Fin Tube passes intergranular corrosion testing and salt spray testing, ensuring durability in HVAC, marine, and heat exchanger applications.

 

3. Quality Control

  • Our tubing undergoes a series of rigorous quality tests before packaging: eddy current testing ensures the base tube is free of cracks, inclusions, or uneven wall thickness; fin adhesion strength testing ensures the fins will not slip or detach during operation.
  • We strictly control the outer diameter, wall thickness, and straightness of the tubing to ensure easy installation onto tube sheets without bending issues.

 

4. Customization Services

  • We offer customized size services, and fin materials such as aluminum, copper, or tin-plated copper, or fin materials requested by the customer.
  • TORICH provides comprehensive OEM and ODM support: production based on customer drawings, support for own brands and custom brands, and comprehensive technical documentation support.

 

5. Packaging and Shipping

  • To protect the fins from loosening or deformation, each finned tube is wrapped in thin foam; various packaging methods are available, including wooden crates and pallets. Custom packaging can also be provided according to customer requirements.
  • We offer multiple shipping methods, including sea freight, air freight, and land freight, and samples are available.

 

application areas

 

  • HVAC and Refrigeration Systems: Condensers and evaporator coils, water-cooled and air-cooled heat exchangers, etc.
  • Industrial Heat Exchangers: Air heaters, economizers and gas coolers, process heat exchangers, etc.
  • Marine and Offshore Applications: Marine HVAC systems, marine coolers and heaters, etc.
  • Petrochemical and Chemical Processing: Air-cooled radiators, chemical processing heat exchangers, condensers, etc.
  • Automotive and Transportation Systems: Radiators, HVAC equipment for buses, trains, and heavy machinery, etc.

 

Chemical Composition

Element Cu (%) Ni (incl. Co) (%) Fe (%) P (%) Mn (%) O (%) Others (%)
C12200 99.90 min - - 0.015–0.040 - - ≤ 0.06
C11000  99.90 min - - - - ≤ 0.04 ≤ 0.03
C70600 88.7–90.0 9.0–11.0 1.0–1.8 - 0.5–1.0 - ≤ 0.50

 

Mechanical Properties

Property Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HB) Thermal Conductivity (W/m·K)
C12200 205–245 69–100 ≥ 30 45–80 ~330
C11000 220–310 70–140 15–55 40–90 ~390
C70600 275–345 105–131 ≥ 30 70–110 ~29

 

Possible Alternative Grades

Alternative Grades Reasons
C71500 (70/30 CuNi) It has superior resistance to seawater corrosion.
C68700 Aluminum brass has good resistance to dezincification.
TP304/TP304L General purpose, with good corrosion resistance, it is widely used in HVAC systems.

 

Products Show

L Foot Copper Fin Tube 55
L Foot Copper Fin Tube

 

Testing Equipment

Eddy Current Flaw Detector
Eddy Current Flaw Detector
Hydraulic Universal Testing Machine
Hydraulic Universal Testing Machine
Intergranular Corrosion Tester
Intergranular Corrosion Tester

 

Factory Equipment

Pickling Equipment

Pickling equipment

wound fin tube
L/LL/KL equipment
Cold drawing equipment
Cold drawing equipment

 

 

Products Package


stainless steel pipe package

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