logo
Good price  online

products details

Home > Products >
Solid Fin Tube
>
ASTM A376 TP347H Stainless Steel Seamless Tube HFW Fin Tube For Convection Coil

ASTM A376 TP347H Stainless Steel Seamless Tube HFW Fin Tube For Convection Coil

Brand Name: Yuhong
Model Number: ASTM A376 TP347H
MOQ: 100KGS
Price: Negotiable
Packaging Details: ply-wooden case with iron frame
Payment Terms: T/T,L/C
Detail Information
Place of Origin:
China
Certification:
ABS, CCS, BV, DNV, LR,
Base Tubes Standard:
ASTM A376
Heat Transfer Efficiency:
Excellent
Size And Details:
According To Clients' Need
Length:
Max 34M/PC
Welding Type:
HFW
Tube Material Grade:
TP347, TP347H
Dimensions:
88.9mm, 114.3mm, 168.3mm, Etc.
Ndt:
Hydrostatic Test, PT
Highlight:

ASTM A376 Seamless Tube

,

TP347H Seamless Tube

,

ASTM A376 TP347H Fin Tube

Product Description

ASTM A376 TP347H, Stainless Steel Seamless Tube, HFW Fin Tube, For Convection Coil Tube 

 

Introduction

Yuhong Holding Group has been exporting goods like heat exchanger tube, boiler tube, fin tube to all over the world. We can provide the all kinds of tube like stainless steel, carbon steel, alloy steel, nickel alloy steel... HFW fin tube is what we are specialized in. Equipped with 10 production lines, we can provide hundreds and thousands tons of fin tube.

 

The ASTM A376 TP347H HFW fin tube combines a seamless stainless steel core with high-frequency welded (HFW) fins, designed for convection coils in fired heaters, boilers, and power plants. TP347H stainless steel offers excellent resistance to creep, stress corrosion, and high-temperature oxidation, making it a premium choice in critical heat transfer zones.


Chemical Composition of TP347H (Tube Material)

Element Content (%)
C 0.04–0.10
Mn ≤ 2.00
Si ≤ 1.00
P ≤ 0.040
S ≤ 0.030
Cr 17.0–19.0
Ni 9.0–13.0
Nb (Cb) 8×C – 1.10
Fe Balance
 

Mechanical Properties (TP347H)

Property Value
Tensile Strength ≥ 515 MPa
Yield Strength ≥ 205 MPa
Elongation ≥ 35%
Hardness ≤ 95 HRB
Max Temp. ~1050°C

Advantages of Solid Fin Tube

  • High Temperature Resistance
    Performs reliably under sustained high heat in convection zones.

  • Excellent Oxidation and Creep Resistance
    Niobium stabilization minimizes grain boundary failure.

  • Efficient Heat Transfer
    Fin-to-tube bonding via HFW enhances thermal performance with high mechanical strength.

  • Durability in Corrosive Environments
    Suitable for aggressive flue gas compositions and steam applications.


Applications of HFW Fin Tube

The tube is used in the convection section of:

  • Fired Heaters
    (hydrocarbon processing, refinery units)

  • Power Boilers & Steam Generators

  • Steam Superheaters & Reheaters

  • Waste Heat Recovery Units

Installation Location:
Located above the radiant section in fired heaters, where gases have cooled slightly and convection heat transfer dominates.

 

ASTM A376 TP347H Stainless Steel Seamless Tube HFW Fin Tube For Convection Coil 0

Ratings & Review

Overall Rating

3.7
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
0%
4 stars
67%
3 stars
33%
2 stars
0%
1 stars
0%

All Reviews

Juan
Argentina Feb 18.2026
The finning is tight — you can tell they used a proper cold-forming process because the fins don't move at all when you try to wiggle them. We've had issues before with other suppliers where the fins would come loose after a few thermal cycles, but these ones feel solid.
I
Ivan Volkov
Russian Federation Nov 11.2025
As an engineer in Siberia, I tested these fin tubes in extreme cold (-30°C). The ASTM A213 T11 steel performed well with no thermal cracks, and cooling efficiency met expectations (88%). That said, the Russian-language documentation had translation errors in technical terms, causing minor confusion during installation.
Y
Y*t
Kazakhstan Apr 19.2025
Using these in oil and gas heat exchangers. Checked the material reports and everything is perfect. These extruded tubes have high strength, making installation a breeze. The seller was patient and helped with all our technical questions.