ASTM A179 Seamless Carbon Steel Embedded G Fin Tubes For Waste Heat Boiler Systems

Embedded/G-type finned tubes are high-efficiency heat exchange elements created by mechanically embedding and pressing fins into and fixing them in place through grooves cut into the outer surface of a base tube. The fins are tightly bonded to the base tube, resistant to vibration/thermal cycling, and not easily detached.

Embedded/G-type finned tubes are suitable for medium-temperature (≤450℃), high-pressure, and multi-medium heat exchange applications, and are widely used in industrial heat exchange, waste heat recovery, and HVAC systems.

Advantages

High efficiency: 30%–50% higher heat transfer efficiency than bare tubes, enabling compact designs.

Strong fit: Mechanical insertion ensures no fin detachment under vibration/thermal cycling.

Medium temperature adaptability: Operates up to 450°C, balancing efficiency and cost.

Economy: Long service life and low maintenance costs.

ASTM A179 seamless carbon steel G-type finned tubes are the core high-efficiency heat exchange elements of waste heat boiler systems. Using ASTM A179 cold-drawn seamless low-carbon steel tubes as the base tube, the metal fins are embedded into the spiral G-type grooves on the outside of the tube and locked in place using a mechanical embedding process.

ASTM A179 seamless carbon steel embedded G fin tubes are specifically designed for medium-temperature, high-pressure, dust-laden flue gas waste heat recovery scenarios.

Chemical Composition (%) max

Mechanical Properties

Key Application Industries

Power & Energy

Boiler systems: Economizers, air preheaters, waste heat boilers, and steam air heaters

Waste heat recovery: Coal/biomass/waste incineration boilers and HRSG heat transfer elements

Nuclear & thermal power

Petrochemical & Natural Gas

Process heat exchange: Air coolers, condensers, reboilers,and oil coolers

Gas processing: Natural gas compression cooling

Refining & chemical: Reactor cooling, distillation tower condensers, and corrosive medium heat exchangers

HVAC & Refrigeration

Commercial/industrial AC: Condensers, evaporators, chillers, and heat pump bundles

Refrigeration systems: Ammonia/Freon/propane refrigeration, cold storage coolers, and equipment

Heating: Central heating radiators, industrial air heaters

Advantages

1.Cost-effective

2.Environment Protection

3.Energy Conservation

4.Highly Efficient

Estimated Specifications For Various Types Of Finned Tubes We Can Do