Extruded Fin Tube | Bi-metallic Finned Tube for Heat Exchanger

The Extruded Fin Tube also known as Bimetallic Fin Tube is one of the most preferred finning processes for various applications.The fins are manufactured by Extruding the Fins on the Aluminum Muff Tube which is made to Fit with close tolerance over the Base Tube.

The Extrusion takes place on a Continuous Fin Extruder with Three Tooling rolls and extrusion takes place at high pressures in the range of 1200 psi. Because of the cold working process the Bond between the Tube and fin is flawless and hence gives excellent Heat Transfer Efficiency. At the same time the mechanical strength of the fins is also enhanced drastically.

EXTRUDED FIN TUBE BIMETALLIC FINNED TUBE Manufacturer and Supplier

Extruded Fin Tubes Are Classified by Material

Extruded Finned Tubes Are Classified by Application

Extruded Fin Tubes find application in AIR FIN COOLERS, DRIERS, RADIATORS etc and are preferred in Industries like Food and Agriculture, Power Plants, Chemical Industries, Steel Plants, and Chiller Plants etc.

Properties of Extruded Fin Tubes (Bimetallic Fin Tube):
Manufacturing Process:- Cold Extrusion
Fin To Tube Bond:- Excellent
Heat Transfer Efficiency:- Excellent

Manufacturing Range (Extruded Fin Tube/Bimetallic Fin Tube):

Item Specification / Material
Tube Material Carbon Steel, Stainless Steel, Alloy Steel, Aluminum, Copper
Fin Material Aluminum, Copper
Tube OD 10-51 mm
Tube Thk 1.65-3.0 mm
Fin Thk 0.3-1.2 mm
Fin Pitch 2.0-15.0 mm
Fin Height 5-16 mm
Aluminium Extruded fin Tube Drawing From Finned Tube Manufacturer and Supplier - Cangzhou Datang Steel Pipe Co., Ltd.
  • We can supply material on urgent delivery basis because of large stock and relations with raw material suppliers.
  • We use only Prime Quality base tube and Aluminum Material.
  • The Extruded fin tubes can be supplied with EN 10204 EN 3.1 and EN 3.2 certifications.
  • We can provide Third Party Inspection from any reputed inspection agency.

FAQs for Extruded Fin Tubes/Bimetallic Fin Tubes

1) What is Fin Tubes?

Fin Tubes or Finned Tubes are a type of heat exchanger tubes. They are used mainly in an air-cooled type heat exchanger where the exchange of heat takes place between gas flowing on the Fins and the fluid flowing inside the Fin Tubes. The main purpose is to increase the surface area to facilitate more exchange of heat between the medium and the air.

2) What is Extruded Fin Tubes or Bi-Metallic Fin Tubes?
Extruded Fin Tubes or Bi-Metallic Fin Tubes are a type of fin tubes that have extruded fins from the outer surface. The base tube is made to slide inside an outer tube made of copper or aluminum. Then, this assembly of the inner and outer tube is passed through an automatic extrusion machine. During the extrusion process, the fin is extruded from the outer tube to the desired height, thickness, and density configuration.

3) How Are Extruded Finned Tubes Produced?
Extruded Fin Tubes or Bi-Metallic Fin Tubes are made of two main components:

Base Tube Material:– Carbon Steel/Alloy Steel/Mild Steel/Stainless steel and tubes manufactured by ERW or Seamless Process
Fin Material:– Aluminum/Copper
We can supply the Extruded Fin Tubes or Bi-Metallic Fin Tubes in both the combinations. Since this type of fin tube generally incorporates two different types of MOC for base tubes and fin material these are widely known as Bi-Metallic Fin Tubes also.

Extruded fin Tube - Finned Tube Manufacturer and Supplier - Cangzhou Datang Steel Pipe Co., Ltd.

4) Where are Extruded Fin Tubes used?

Extruded Fin Tubes are mainly used in air fin coolers and different types of air-cooled radiators. They mainly find application in areas where the heat exchanger or the air fin cooler is exposed to a lot of harsh environment. The outer provides comprehensive protection to the exposed surface of the base tube.

The main industries in which the Extruded Fin Tubes or Bi-Metallic Fin Tubes find service are Process Chemical Plants, Refineries, Gas Processing Plants, Steel plants, Rice Processing Plants, Power Plants, Fertilizer Manufacturing Plants, etc.

5) Why should you buy Extruded Fin Tubes manufactured by Datang Fin Tube?

Datang has a factory that has been producing fin tubes and heat exchangers for nearly 20 years. From the base tube to the fin tube and the heat exchanger, everything is checked.Datang Fin tube service has exceeded 3000+ enterprises.We have a strong technical service team that can provide free designs, kitchenware drawings, and heat calculations.

This gives a very strategic and commercial advantage to our clients and we have a big stock of base tubes readily available. Buying extruded fin tubes from us also has other benefits, including fewer hassles and costs to manage suppliers for Base Tubes and Fin Tubes, capital blocking for a shorter period, saved transportation costs, reduced TPI costs, etc.

Aluminium Extruded fin Tube - Finned Tube Manufacturer and Supplier - Cangzhou Datang Steel Pipe Co., Ltd.