Extruded Fin Tube Steel Aluminum Bimetallic Composite Finned Tube For Oil And Natural Gas

Material

This product is a bimetallic extruded fin tube composed of a carbon steel or alloy steel core tube combined with an aluminum outer fin layer. The aluminum fins are formed by an extrusion process that permanently bonds the aluminum sleeve to the steel tube, ensuring excellent thermal contact and long-term stability. The steel tube provides pressure resistance and mechanical strength, while the aluminum fins deliver superior heat transfer performance.

Specifications

• Base Tube Material: Carbon Steel / Low Alloy Steel / Stainless Steel

• Fin Material: Aluminum (typically AA1100 / AA1060 / AA3003)

• Outer Diameter (Tube): 12–60 mm

• Wall Thickness (Tube): 1.5–6.0 mm

• Fin Height: 5–16 mm

• Fin Thickness: 0.3–0.6 mm

• Fin Density: 7–16 fins per inch (customizable)

• Tube Length: Up to 18 meters

• Manufacturing Process: Aluminum extrusion forming solid mechanical bond

Key Features

• Excellent heat transfer efficiency due to continuous aluminum fins

• Strong metallurgical bonding between steel tube and aluminum fins

• High resistance to vibration and fin loosening

• Suitable for high-pressure internal media

• Lightweight fin structure reduces overall exchanger weight

• Long service life in demanding oil and gas environments

Our Advantages

Customers in oil and natural gas applications are mainly concerned with bonding reliability, corrosion resistance, operating temperature limits, maintenance cost, and heat transfer efficiency. We address these concerns as follows:

• Reliable Fin Bonding: The extrusion process creates a permanent mechanical bond, eliminating fin detachment during thermal cycling or vibration.

• Corrosion Protection: Aluminum fins provide excellent atmospheric corrosion resistance, while optional coatings or cathodic protection can be applied for offshore or coastal environments.

• Wide Temperature Range: Designed to operate reliably from cryogenic conditions up to approximately 300°C on the fin side, meeting typical oil and gas heat exchanger requirements.

• Lower Lifecycle Cost: High heat efficiency allows compact exchanger design, reducing material usage, maintenance frequency, and operating costs.

• Custom Engineering Support: Fin geometry, tube material, and dimensions can be optimized for gas coolers, air coolers, and process heat exchangers.

Chemical Composition (Typical Base Tube Grades)

Mechanical Properties 

Applicable Standards

• ASTM: A106, A179, A214, A213

• EN: EN 10297, EN 10216

• JIS: JIS G3454, JIS G3441

• GB: GB/T 8163, GB/T 5310

• GOST: GOST 8732, GOST 8734

Application Areas

General Applications:
Oil and gas heat transfer systems, air-cooled heat exchangers, gas coolers, condensers, and process heaters.

Specific Uses:

• Natural gas compression station air coolers

• Crude oil and refined product heat exchangers

• Offshore platform cooling systems

• Petrochemical process heaters

• Gas dehydration and treatment units

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.