Seamless Steel Square ASME SA179 U+H Type Fin Tube is a specialized component used in economizers for boiler pressure systems. These tubes are designed to maximize heat transfer efficiency and improve the overall performance of industrial boilers.

U+H fin design significantly increases the surface area, optimizing heat exchange. Carbon steel provides reliable performance under high-temperature conditions. Square design offers enhanced support and space efficiency.

It's a high-performance component engineered to enhance thermal efficiency and durability in industrial applications. Its seamless construction, robust material properties, and innovative fin design make it an ideal choice for economizers and other heat recovery systems.

Chemical Composition:

Grade	C	Mn	P	S
SA179	0.06-0.18%	0.27-0.63%	0.035% max	0.035% max

Mechanical Properties:

Grade	Tensile Strength	Yield Strength	Elongation	Hardness
SA179	≥ 180 MPa (26 ksi)	≥ 325 MPa (47 ksi)	Variable based on diameter	Typically ≤ 72 HRB

Key Features:

Material: Constructed from ASME SA179 carbon steel, providing excellent heat transfer properties.
Seamless Construction: Ensures uniform strength and reliability, reducing the risk of leaks.
Square Tube Design: Offers structural stability and efficient space utilization.
U+H Type Fin Design: Combines U and H fins to significantly increase surface area and optimize heat transfer.

Applications:

These fin tubes are specifically designed for use in economizers, which are crucial components of industrial boiler systems:

Economizers:
- Recover residual heat from exhaust gases, preheating the feedwater and improving overall thermal efficiency.
Heat Exchangers:
- Enhance energy recovery in power generation and industrial processes.
Industrial Boilers:
- Increase efficiency and reduce fuel consumption in various industrial applications.

Seamless Steel Square ASME SA179 U+H Type Fin Tube Boiler Pressure Parts Economizer 0

Ratings & Review

Overall Rating

4.3

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

67%

4 stars

3 stars

33%

2 stars

1 stars

All Reviews

Sajid

Pakistan Jan 12.2026

Helpful (4)

Tube ends were clean, dimensions accurate. Our fitters didn't complain about fit-up.

Salem

Oman Sep 24.2025

Helpful (2)

We checked a few before installation — wall thickness consistent, roundness good. Welded in without problems.

Marek

Poland Sep 5.2025

Helpful (2)

Heat transfer has been consistent since day one. Our outlet temperatures are steady, and the exchanger is performing exactly as we expected.

Tags:

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

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Super Duplex Stainless Steel Heat Exchanger Tube

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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

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