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ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube

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ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube

Brand Name:	Yuhong
Model Number:	ASTM A249 TP304
MOQ:	100kgs
Price:	Negotiable
Packaging Details:	ply-wooden case with iron frame
Payment Terms:	L/C,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

ABS, BV, CCS, LR, DNV

Tube Ends:

Plain

Fin Spacing:

2.0mm-20mm

Tube Diameter:

3/8 Inch

Fin Thk:

0.4mm

Packing:

Ply-wooden Case With Iron Frame

Highlight:

ASTM A249 Welded Tube

TP304 Stainless Steel Welded Tube

Product Description

Stainless Steel Welded Tube, ASTM A249 TP304, L Fin Tube, Fin Fan Tube

Product Specifications

Attribute	Value
Tube Ends	Plain
Fin Spacing	2.0mm-20mm
Fpi	9-13
Tube Diameter	3/8 inch
Fin Thk	0.4mm
Packing	Ply-wooden Case With Iron Frame

Product Overview

The ASTM A249 TP304 stainless steel L-fin tube is a welded austenitic stainless steel tube wrapped with helically wound L-type fins, typically made from aluminum or stainless steel. The L-shaped fin is tightly wound under tension to ensure close metal-to-metal contact, which improves heat transfer performance.

Chemical Composition

Base Tube: ASTM A249 TP304 Stainless Steel

Element	Content (%)
C	≤ 0.08
Mn	≤ 2.00
Si	≤ 0.75
P	≤ 0.045
S	≤ 0.030
Cr	18.0 - 20.0
Ni	8.0 - 11.0
Fe	Balance

Fin Material Options:

Aluminum (Al1060): High thermal conductivity, lightweight, suitable for general cooling applications.

Mechanical Properties

Property	Value (TP304)
Tensile Strength	≥ 515 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 35%
Hardness	≤ 90 HRB

Key Advantages

Excellent Heat Transfer: The L-fin structure maintains tight contact, improving thermal efficiency.
Corrosion Resistance: TP304 provides strong resistance to moisture, chemicals, and oxidizing agents.
Mechanical Strength: Welded stainless steel tube offers durability under operating pressure.
Cost-Effective: More economical than seamless alternatives for general service conditions.
Customizable: Fins available in various heights, thicknesses, and materials per design needs.

Industrial Applications

Used extensively in air-cooled heat exchanger units (fin fan units) for:

Oil Refineries
Petrochemical Plants
Gas Processing Facilities
Power Plants
Offshore Cooling Systems
Fertilizer Plants

Specific Role in Air Coolers:
Installed in the convection section where ambient air is blown across the finned surface to remove heat from process fluids flowing inside the tube.

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

33%

4 stars

67%

3 stars

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.

Rashid

United Arab Emirates Dec 10.2025

Helpful (2)

Good oxidation resistance, matches well with the T9. No scaling or thinning noticed.

Kumar

India Nov 8.2025

Helpful (2)

No corrosion issues so far, though we're running below dew point carefully. Installation was straightforward—tube sheets lined up, ends clean, rolling into the header went smooth.

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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