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ASTM A376 TP347H Stainless Steel Solid HF Welding Fin Tube For Convection Coil Tube

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ASTM A376 TP347H Stainless Steel Solid HF Welding Fin Tube For Convection Coil Tube

Brand Name:	Yuhong
Model Number:	ASTM A376 TP347H
MOQ:	100kgs
Price:	Negotiable
Packaging Details:	ply-wooden case with iron case
Payment Terms:	L/C,T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

ABS, CCS, BV, LR, DNV

Base Tube:

16mm-219mm

Fin Wall Thickness:

0.8-3mm

Fin Pitch:

1 Inch

Fin Thk:

9.07mm

Tube Standard:

ASTM A376

Dimensions:

88.9mm, 114.3mm, 168.3mm, Etc.

Fins:

TP347H

Corrosion Resistance:

Pipe Length:

Customsized

Welding Area:

According To Actual Demand

Highlight:

ASTM A376 Solid Fin Tube

TP347H Solid Fin Tube

Product Description

ASTM A376 TP347H Stainless Steel Solid HF Welding Fin Tube For Convection Coil Tube

Product Specifications

Attribute	Value
Base Tube	16mm-219mm
Fin Wall Thickness	0.8-3mm
Fin Pitch	1 inch
Fin Thk	9.07mm
Tube Standard	ASTM A376
Dimensions	88.9mm, 114.3mm, 168.3mm, etc.
Fins	TP347H
Corrosion Resistance	High
Pipe Length	Custom-sized
Welding Area	According to actual demand

Product Overview

The ASTM A376 TP347H solid fin tube is designed for high-temperature heat transfer systems, especially in convection coil sections of boilers and furnaces. Made from seamless TP347H stainless steel, the tube is externally finned using solid carbon steel or stainless steel strips bonded by high-frequency welding (HFW), significantly improving heat exchange efficiency in compact designs.

Chemical Composition (TP347H Tube)

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

Property	Value (TP347H)
Tensile Strength	≥ 515 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 35%
Hardness	≤ 95 HRB
Max. Operating Temp	~1050°C

Key Advantages

High Temperature Strength - Stabilized with niobium (Nb) for superior creep resistance at elevated temperatures.
Enhanced Heat Transfer - Solid fins provide greater surface area for efficient heat dissipation in convection zones.
High Welding Integrity - High-frequency welding delivers tight fin-to-tube bonding, even under thermal cycling.
Corrosion and Oxidation Resistant - Excellent resistance to scaling and corrosion in flue gas environments.
Long Service Life - Durable construction ideal for continuous-duty, high-heat applications.

Typical Applications

Used primarily in the convection section of:

Fired Heaters (Oil & Gas)
Industrial Furnaces
Power Plant Boilers
Heat Recovery Units
Steam Superheaters

These tubes are installed horizontally or vertically where they absorb convective heat from flue gases after the radiant zone.

Ratings & Review

Overall Rating

4.7

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

67%

4 stars

33%

3 stars

2 stars

1 stars

All Reviews

Luis Fuentes

Chile Feb 11.2026

Helpful (5)

Using these in mining cooling equipment under pretty rough conditions. They’ve been running for a month now and are super stable.

Sajid

Pakistan Jan 12.2026

Helpful (4)

Tube ends were clean, dimensions accurate. Our fitters didn't complain about fit-up.

P*l

India Sep 16.2025

Helpful (3)

No leaks, no fin damage, performance consistent. Heat transfer hasn't dropped, so fouling doesn't seem to be a problem yet.

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products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube