G-Type Embedded Fin Tube | GOST 550-2020 Steel 20 Base Tube + AL1060 Aluminum Fins

Product Introduction

Our G-Type Embedded Fin Tubes (also known as Grooved Embedded Finned Tubes) are high-performance heat transfer components designed for demanding industrial applications. Manufactured by embedding aluminum fins into precisely machined grooves on the carbon steel base tube, these tubes provide an exceptionally strong mechanical bond, excellent heat transfer efficiency, and reliable performance at high temperatures up to 400°C.

This product fully complies with GOST 550-2020 for the base tube (Steel 20) and uses premium AL1060 aluminum for the fins, making it an ideal choice for air-cooled heat exchangers, waste heat recovery systems, and other critical thermal equipment.

Product Material

Base Tube: GOST 550-2020 Steel 20 (High-quality structural carbon steel) Fin Material: AL1060 (Pure aluminum alloy, excellent thermal conductivity and corrosion resistance)

Chemical Composition

Base Tube – GOST 550-2020 Steel 20

Fins – AL1060 Aluminum

Fin Tube Structure & Manufacturing Process

The G-Type Embedded Fin Tube features a unique embedded structure:

• Base Tube: Seamless or welded carbon steel pipe (Steel 20) with helical grooves machined on the outer surface (groove depth approx. 0.4mm).

• Fins: Aluminum strip (AL1060) is tension-wound and mechanically embedded into the grooves.

• Embedding Process: The fin base is locked firmly by rolling and backfilling the groove with the base tube material, creating a strong metallurgical and mechanical bond without additional welding or adhesives.

This process ensures the fins remain securely attached even under thermal cycling, vibration, and high-temperature conditions.

Dimensions & Tolerances (Typical Range)

Custom dimensions available upon request.

Performance Advantages

• Superior Fin Bond: Embedded design provides the strongest mechanical attachment among fin types, resistant to loosening under thermal expansion/contraction.

• High Heat Transfer Efficiency: Significantly increases external surface area, improving overall heat transfer coefficient.

• High Temperature Resistance: Safe continuous operation up to 400°C.

• Excellent Corrosion Resistance: AL1060 aluminum fins offer good atmospheric and moisture corrosion protection.

• Low Thermal Resistance: Tight contact between fin and base tube minimizes contact resistance.

• Long Service Life: Reduced risk of fin dropout, lower maintenance costs.

Application Fields

Our GOST 550-2020 Steel 20 + AL1060 Embedded Fin Tubes are widely used in:

• Air Cooled Heat Exchangers (ACHE)

• Petrochemical and Refinery Process Coolers

• Waste Heat Recovery Systems

• Power Plant Economizers and Air Preheaters

• Gas Compressor Coolers

• Industrial Boilers and Fired Heaters

• HVAC and Large Refrigeration Systems

• Marine and Offshore Heat Transfer Equipment

Why Choose Us – Our Advantages & Experience

With over 15 years of experience as a professional manufacturer and exporter of finned tubes, we specialize in high-quality G-Type Embedded Fin Tubes. Our advantages include:

• Advanced CNC grooving and embedding production lines ensuring consistent quality and tight tolerances.

• Strict quality control system with 100% inspection (hydrostatic testing, dimensional checks, pull-out tests).

• Full material traceability with Mill Test Certificates (EN 10204 3.1).

• Rich export experience to Europe, Middle East, Southeast Asia, and North America.

• Strong technical team capable of providing custom design and engineering support according to customer drawings and specifications.

• Competitive pricing combined with reliable delivery and excellent after-sales service.

We are committed to helping our global clients improve heat transfer efficiency while reducing long-term operational costs.