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YUHONG HOLDING GROUP CO., LTD

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China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin
China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin

  1. China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin
  2. China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin
  3. China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin
  4. China Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin

Stainless Steel High Frequency Welded Finned Tubes TP304H Base SS304 Fin

  1. MOQ: 10PCS
  2. Price: Negotiable
  3. Get Latest Price
Delivery Time Depends on quantity
Payment Terms L/C,T/T
Fin Material SS304
Standard ASTM, ASME
Application Heat Exchanger, Boiler, Economizer
Welding Type High Frequency Welded
Packaging Details IRON FRAME WOODEN CASE
Supply Ability 1000 tons per month
Base Tube Material TP304H
Model Number HFW FIN TUBE
Brand Name YUHONG
Place of Origin CHINA
Certification ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU;

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  1. Product Details
  2. Company Details

Product Specification

Delivery Time Depends on quantity Payment Terms L/C,T/T
Fin Material SS304 Standard ASTM, ASME
Application Heat Exchanger, Boiler, Economizer Welding Type High Frequency Welded
Packaging Details IRON FRAME WOODEN CASE Supply Ability 1000 tons per month
Base Tube Material TP304H Model Number HFW FIN TUBE
Brand Name YUHONG Place of Origin CHINA
Certification ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU;
High Light Stainless Steel High Frequency Finned TubesWelded Finned Tubes TP304HSS304 Solid Fin Tube

High Frequency Welded Finned Tubes – TP304H Base Tube + SS304 Fins


Product Overview – High Frequency Welded Finned Tubes (TP304H Base + SS304 Fins)


High Frequency Welded Finned Tubes with A312 TP304H base tube and SS304 fins are premium stainless steel finned tubes designed for high-temperature and corrosive environments. The combination of TP304H base tube (high-temperature austenitic stainless steel) and SS304 fins provides excellent heat transfer efficiency, superior oxidation resistance, and long service life in demanding industrial applications.


These tubes are manufactured using the high-frequency resistance welding process, ensuring a strong metallurgical bond between the fins and the base tube without the use of filler material.


Structure of TP304H / SS304 High Frequency Welded Finned Tubes


The finned tube consists of three main components:


  • Base Tube: ASTM A312 TP304H seamless stainless steel tube, serving as the fluid carrier and providing high-temperature strength.
  • Fins: SS304 (UNS S30400) stainless steel strip fins helically wound around the base tube.
  • Welding Process: High-frequency resistance welding creates a continuous, high-integrity bond between the fin root and the base tube outer surface. This solid-state welding method ensures minimal heat-affected zone and excellent mechanical strength.


Chemical Composition


Base Tube – ASTM A312 TP304H


Element Content (%)
Carbon (C) 0.04 – 0.10
Manganese (Mn) ≤ 2.00
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.030
Silicon (Si) ≤ 1.00
Chromium (Cr) 18.00 – 20.00
Nickel (Ni) 8.00 – 11.00



Fins – SS304 Stainless Steel


Element Content (%)
Carbon (C) ≤ 0.08
Manganese (Mn) ≤ 2.00
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.030
Silicon (Si) ≤ 1.00
Chromium (Cr) 18.00 – 20.00
Nickel (Ni) 8.00 – 10.50



Dimensional Tolerances (Typical Range)


Parameter Tolerance Standard Reference
Base Tube Outside Diameter ±0.5% or ±0.3 mm (whichever larger) ASTM A312
Base Tube Wall Thickness ±12.5% ASTM A312
Fin Height ±0.5 mm Manufacturer Standard
Fin Thickness ±0.05 mm Manufacturer Standard
Fin Pitch (Fins per meter) ±5% Manufacturer Standard
Tube Length +5 mm / -0 mm Customer Requirement



Performance Advantages of TP304H + SS304 HF Welded Finned Tubes


  • Excellent high-temperature strength and creep resistance (TP304H)
  • Superior oxidation and corrosion resistance in both base tube and fins
  • High heat transfer efficiency due to continuous helical fin design
  • Strong and reliable weld bond (no filler metal)
  • Long service life with minimal maintenance
  • Suitable for operating temperatures up to 800°C
  • Good resistance to thermal fatigue and vibration


Detailed Application Fields


TP304H + SS304 High Frequency Welded Finned Tubes are widely used in the following industries:


  • Petrochemical and oil refining (fired heaters, convection sections)
  • Power generation boilers and waste heat recovery systems
  • Heat recovery steam generators (HRSG)
  • Chemical processing plants
  • Metallurgical furnaces and annealing lines
  • Food processing and pharmaceutical equipment requiring high cleanliness
  • Offshore and marine heat exchangers


Our Advantages and Manufacturing Experience


With over 15 years of experience in manufacturing high-frequency welded finned tubes, we specialize in stainless steel finned tube solutions for high-temperature applications. Our TP304H base tubes are sourced from premium mills and strictly comply with ASTM A312 standards. We maintain full traceability and provide material certificates (EN 10204 3.1 / 3.2) upon request.

Key strengths include:


  • Strict quality control on weld integrity and fin geometry
  • Customized fin specifications according to customer drawings
  • Competitive lead time and stable supply capacity
  • Technical support for material selection and fin design optimization


Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    1990

  • Total Annual:

    50M-70M

  • Employee Number:

    50~800

  • Ecer Certification:

    Verified Supplier

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...

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Get in touch with us

  • Reach Us
  • YUHONG HOLDING GROUP CO., LTD
  • 20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
  • https://www.steelfintube.com/

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