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ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
Specifications
Brand Name :
Yuhong
Model Number :
ASTM A376 TP347H
Certification :
ABS, BV, CCS DNV, LR
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
Type :
High Frequency Welding Fin Tubes
Stud Pitch :
As Per Client Request
Fin Thick :
0.8mm-3mm
Bare Tube Diameter :
16mm-219mm
Production Process :
Cold Drawn
Ndt :
Hydrostatic Test, PT
Fpi :
9-13
Welding Area :
According to actual demand
Description

ASTM A376 TP347H Stainless Steel Seamless Pipe, Solid Fin Tube, With Carbon Steel Fin Strip


Introduction

This finned tube is made from ASTM A376 TP347H, a high-temperature austenitic stainless steel pipe, combined with carbon steel solid fins welded onto the outer surface using high-frequency welding (HFW). It is widely used in high-temperature heat exchangers, furnaces, and power plant economizers, where enhanced heat transfer and structural durability are critical.

Chemical Composition

Base Tube – ASTM A376 TP347H

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 to 1.10
Fe Balance

Fin Strip – Carbon Steel (e.g., Q235B)

Element Content (%)
C ≤ 0.22
Mn 0.30 – 0.70
Si ≤ 0.35
P ≤ 0.045
S ≤ 0.050
Fe Balance

Mechanical Properties

Property TP347H BaseTube Carbon Steel Fin
Tensile Strength ≥ 515 MPa 375–500 MPa
Yield Strength ≥ 205 MPa ≥ 235 MPa
Elongation ≥ 35% ≥ 20%
Hardness ≤ 95 HRB ≤ 120 HB

Advantages

  • Excellent High-Temperature Resistance: TP347H is stabilized with niobium for long-term strength at elevated temperatures.

  • Strong Weldability: High-frequency welding ensures firm bonding between tube and fins.

  • Enhanced Heat Transfer Surface: Solid fins increase surface area and improve heat dissipation.

  • Cost-Effective Fin Material: Carbon steel fins reduce costs while maintaining adequate thermal performance.

  • Mechanical Durability: Good resistance to thermal stress and mechanical vibration in fired heaters and economizers.

Applications

Used in high-temperature and high-pressure systems, such as:

  • Furnace Convection Sections

  • Power Plant Economizers

  • Petrochemical Reboilers

  • Heat Recovery Boilers

  • Heater Coils in Oil Refineries

ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip

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ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip

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Product Detail
Brand Name :
Yuhong
Model Number :
ASTM A376 TP347H
Certification :
ABS, BV, CCS DNV, LR
Place of Origin :
China
MOQ :
100kgs
Price :
Negotiable
Contact Supplier
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip
ASTM A376 TP347H Stainless Steel Seamless Pipe Solid Fin Tube With Carbon Steel Fin Strip

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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