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ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant

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ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant

Name: ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant
Brand: Yuhong
Price: 1 USD

Buy cheap ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant product

Brand Name : Yuhong

Model Number : ASTM A312 TP347H

Certification : ABS, BV, CCS, DNV, LV, PED

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

Bare Pipe Material : A312 TP347H

Fin Type : high Frequency Welding, Serrated

Fin Height : 1 inch

Fin Material : Stainless Steel

Specification : ASME SA312

Packing : Standard Export Seaworthy Package

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ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant Application

Product Overview

HFW Serrated Fin Tube made from ASTM A312 TP347H stainless steel is engineered for use in power plant systems, especially in economizers, superheaters, and convection sections where high temperatures and corrosive environments are common. The serrated fin design enhances turbulent flow, significantly improving heat transfer efficiency.

The fins are high-frequency welded (HFW) onto the base tube, ensuring a strong metallurgical bond capable of withstanding vibration, thermal cycling, and pressure fluctuations in thermal power plants.

Chemical Composition

Base Tube: ASTM A312 TP347H Stainless Steel

Element	Composition (%)
Carbon (C)	0.04 – 0.10
Manganese (Mn)	≤ 2.00
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Silicon (Si)	≤ 1.00
Chromium (Cr)	17.0 – 19.0
Nickel (Ni)	9.0 – 13.0
Niobium (Nb)	10×C to 1.10

Mechanical Properties

Base Tube: TP347H

Property	Value
Tensile Strength	≥ 515 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 35%
Hardness	≤ 217 HB
Max Working Temp	Up to 1000°C

Advantages

Enhanced Heat Transfer: Serrated fins break boundary layers and improve turbulence, increasing thermal efficiency.
High Creep Resistance: TP347H offers excellent performance in long-term high-temperature service.
Anti-Oxidation Capability: Ideal for oxidizing environments in flue gas streams.
Durable Welded Joint: HFW process ensures long service life under cyclic thermal loads.
Corrosion Resistance: Resistant to sulfidation, carburization, and intergranular corrosion.

Applications in Power Plants

Economizer Coils

Where is the ASTM A312 TP347H HFW Serrated Fin Tube?

Convection Zone which is the key heat transfer area. It is located in the rear of the boiler fllue gas path. This area handles high-temperature exhaust gases from the combustion process.

Why Serrated Fin Tubes Are Ideal Here:

Enhanced Heat Transfer from turbulent gas flow around the serrated surfaces.
Withstand Thermal Stress thanks to TP347H's high creep strength and oxidation resistance.
Low Maintenance because of their long service life even under cycling boiler operations.

ASTM A312 TP347H Stainless Steel HFW Serrated Fin Tube For Power Plant

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