Serrated Finned Tube for HRSG (Heat Recovery Steam Generator) is a high-efficiency heat transfer component designed to improve thermal performance in waste heat recovery systems. This type of fin tube uses a continuous serrated fin structure welded or mechanically bonded onto the base tube, increasing the effective heat transfer surface area while maintaining strong gas-side turbulence.

The base tube material, ASME SA210 Gr. C, is a carbon steel boiler and superheater tube material widely used in high-temperature pressure applications. It provides suitable mechanical strength, thermal conductivity, and resistance to operating conditions commonly found in HRSG economizer, evaporator, and superheater sections.

Serrated fin design helps reduce boundary layer formation on the gas side, improving heat transfer efficiency compared with plain tubes while reducing overall equipment size. It is commonly applied in combined cycle power plants, industrial waste heat recovery units, and energy conversion systems where compact and reliable heat exchange performance is required.

Typical Applications

ASME SA210 Gr. C serrated finned tubes are commonly used in:

HRSG Economizers
Recovering heat from turbine exhaust gas to preheat feedwater and improve boiler efficiency.
HRSG Evaporators
Supporting steam generation by transferring heat from hot exhaust gas to circulating water.
HRSG Superheaters
Increasing steam temperature for power generation processes.
Waste Heat Recovery Boilers
Capturing industrial exhaust heat from processes such as steel, cement, chemical, and refinery operations.
Power Generation Systems
Used in combined cycle power plants and gas turbine waste heat recovery equipment.

Product Features

Base tube manufactured according to ASME SA210 Gr. C requirements
Serrated fin geometry improves gas-side heat transfer performance
Suitable for high-temperature and pressure boiler applications
Available with different fin heights, thicknesses, and tube dimensions
Compatible with HRSG heat exchanger design requirements
Can be inspected according to international standards

Size Range

Item	Typical Range
Base Tube Material	ASME SA210 Gr. C Carbon Steel
Tube Outside Diameter	25.4 mm – 76.2 mm
Tube Wall Thickness	2.5 mm – 8.0 mm
Tube Length	Up to 18,000 mm
Fin Height	10 mm – 25 mm
Fin Thickness	0.8 mm – 2.5 mm
Fin Density	4 – 12 fins/inch
Fin Type	Serrated / Segmented Spiral Fin
Fin Material	Carbon Steel, Alloy Steel, Stainless Steel (as required)
Manufacturing Standard	ASME, ASTM, customer specification

Dimensions can be customized according to HRSG engineering requirements.

Chemical Composition of ASME SA210 Gr. C Base Tube

Element	Chemical Requirement (%)
Carbon (C)	0.35 max
Manganese (Mn)	0.29 – 1.06
Phosphorus (P)	0.035 max
Sulfur (S)	0.035 max
Silicon (Si)	0.10 min

Typical mechanical requirements for ASME SA210 Gr. C base tube

Mechanical Property	Requirement
Tensile Strength	≥ 485 MPa
Yield Strength	≥ 275 MPa
Elongation	≥ 30%

Ratings & Review

Overall Rating

4.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

4 stars

100%

3 stars

2 stars

1 stars

All Reviews

Ahmed Al-Rashid

Kuwait Mar 3.2026

Helpful (2)

Tube ends were clean, dimensions consistent. Our crew didn't run into fit-up issues.

P*l

India Sep 16.2025

Helpful (3)

No leaks, no fin damage, performance consistent. Heat transfer hasn't dropped, so fouling doesn't seem to be a problem yet.

Godfrey

Uganda Aug 20.2025

Helpful (3)

For power plant boilers, especially in industrial settings like ours, these tubes work. Good heat transfer, holding up well.

Tags:

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Fired Heater Parts

Baffle Plate

Tubesheet

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube