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ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
Specifications
Brand Name :
Yuhong
Model Number :
ASTM A249 TP304
Certification :
ABS, BV, CCS, LR, DNV
Place of Origin :
China
MOQ :
100kgs
Price :
Negotiable
Payment Terms :
L/C,T/T
Delivery Time :
7days
Packaging Details :
ply-wooden case with iron frame
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
Description

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

Introduction

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. This type of fin tube is widely used in fin fan air coolers in refineries, petrochemical plants, gas compression stations, and power generation systems.

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

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.

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.

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

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Product Detail
Brand Name :
Yuhong
Model Number :
ASTM A249 TP304
Certification :
ABS, BV, CCS, LR, DNV
Place of Origin :
China
MOQ :
100kgs
Price :
Negotiable
Contact Supplier
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube
ASTM A249 TP304 L Fin Tube Fin Fan Stainless Steel Welded Tube

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
2 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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