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ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
Specifications
Brand Name :
Yuhong
Model Number :
ASTM A312 TP347H
Certification :
ABS, CCS, BV, LR,
Place of Origin :
China
MOQ :
100 KGS
Price :
Negotiable
Payment Terms :
L/C,T/T
Supply Ability :
1000 ton per ton
Delivery Time :
According to qty
Packaging Details :
Ply-wooden case with iron frame
Fin Type :
HFW Fin Tube, Serrated Fin Tube
Fin Material :
SS304H
Fin Thick :
0.8mm-3mm
Base Pipe Material :
ASTM A312 TP347H
Fin Strip :
Serrared
Production Process :
Cold Drawn
Ndt :
ECT, HT
Application :
Furnace
Description

ASTM A312 TP347H Stainless Steel Seamless Pipe, Serrated Fin Tube, For Furnace Tube

Product Overview

ASTM A312 TP347H is a high-temperature, stabilized austenitic stainless steel with added columbium (niobium) for improved creep strength. When made into Serrated Fin Tubes using High-Frequency Welding (HFW), this tube becomes ideal for furnace convection sections, offering enhanced heat transfer efficiency and extended service life under cyclic thermal stress and oxidizing conditions.

Chemical Composition – ASTM A312 TP347H

Element Content (%)
C 0.04 – 0.10
Mn ≤ 2.00
P ≤ 0.040
S ≤ 0.030
Si ≤ 1.00
Cr 17.0 – 19.0
Ni 9.0 – 13.0
Nb (Cb) 10 × C min
Fe Balance

Mechanical Properties – TP347H

Property Value
Tensile Strength ≥ 515 MPa
Yield Strength ≥ 205 MPa
Elongation ≥ 35%
Hardness (HBW) ≤ 192 HB
Max. Working Temp ~ 1050°C (1922°F)

Advantages of TP347H Serrated Fin Tube

  • High Temperature Resistance
    Ideal for superheaters, heaters, and furnaces, TP347H withstands long-term service at elevated temperatures without creep deformation.

  • Improved Heat Transfer Efficiency
    The serrated fin design increases turbulence and surface area, boosting heat transfer while minimizing fouling.

  • Oxidation & Corrosion Resistance
    Excellent performance in oxidizing atmospheres, especially in fuel-fired furnaces.

  • Creep-Strength Enhanced
    Addition of niobium enhances structural stability under high stress and thermal cycling.

  • Weldability and Fabrication
    Good weldability with standard procedures; suitable for custom-designed fin configurations.

Application in Furnace Systems

The Serrated Fin Tube made of ASTM A312 TP347H is specifically used in:

  • Convection Section of Furnaces
    Absorbs radiant heat and transfers it efficiently to the working fluid (steam, oil, or gas).

  • Heater Banks & Superheaters
    Installed where both thermal efficiency and material durability are critical.

  • Refinery Fired Heaters
    In hydrocarbon processing, TP347H fin tubes are used in crude, reformer, and hydrotreater furnaces.

ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer

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ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer

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Product Detail
Brand Name :
Yuhong
Model Number :
ASTM A312 TP347H
Certification :
ABS, CCS, BV, LR,
Place of Origin :
China
MOQ :
100 KGS
Price :
Negotiable
Contact Supplier
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer
ASTM A312 TP347H Serrated Fin Tube for Furnace Heat Transfer

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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