ASTM A312 TP304H Serrated Finned Tubes for Air Coolers are engineered for optimal thermal performance in industrial air-cooled heat exchangers. Designed with precision serrated fins on high-quality TP304H stainless steel tubes, these components maximize heat transfer efficiency while ensuring long-term corrosion and oxidation resistance under high-temperature and cyclic service conditions.

Ideal for petrochemical plants, refineries, power generation units, and chemical processing facilities, these tubes are widely used in air coolers, fin fan coolers, and process gas cooling systems. The serrated fin profile improves turbulence around the tube, increasing the overall heat transfer rate and minimizing fouling, which reduces maintenance requirements and operational costs.

Key Features

High-performance serrated fin design for superior heat transfer
Manufactured from ASTM A312 TP304H austenitic stainless steel tubes
Excellent corrosion and oxidation resistance at elevated temperatures
High creep strength suitable for continuous high-temperature operation
Customizable fin height, pitch, and density to meet thermal design needs
Available in high-frequency welded, resistance welded, or mechanically bonded options
Long service life with reduced fouling and maintenance

Typical Applications

Industrial Air Coolers
Fin Fan Heat Exchangers
Petrochemical Gas Cooling Systems
Power Plant Air-Cooled Condensers
Refineries and Process Cooling Units
Thermal Oxidizer Gas Coolers

Common Size Range

Base Tube Dimensions:

Outer Diameter: 19 mm – 63.5 mm (¾” – 2½”)
Wall Thickness: 1.65 mm – 6.35 mm
Tube Length: Up to 18 meters

Serrated Fin Dimensions:

Fin Height: 8 mm – 25 mm
Fin Thickness: 0.3 mm – 1.2 mm
Fin Pitch: 2 mm – 12 mm
Fin Density: 2 – 13 fins per inch (FPI)

Manufacturing Options:

High-Frequency Welded Serrated Finned Tubes
Resistance Welded Serrated Finned Tubes
Mechanically Bonded Serrated Finned Tubes

Custom sizes and fin geometries can be produced to meet specific air cooler design requirements.

Chemical Composition (ASTM A312 TP304H)

Element	Composition (%)
Carbon (C)	0.04 – 0.10
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Chromium (Cr)	18.00 – 20.00
Nickel (Ni)	8.00 – 11.00
Nitrogen (N)	≤ 0.10

Mechanical Properties

Property	Value
Tensile Strength	≥ 515 MPa
Yield Strength (0.2% offset)	≥ 205 MPa
Elongation	≥ 35%
Hardness	≤ 92 HRB
Density	7.93 g/cm³

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