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Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
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China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters
China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters

  1. China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters
  2. China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters
  3. China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters
  4. China CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters

CS Embedded Fins on A179 Tubes For Boilers Heat Exchangers & Air Preheaters

  1. MOQ: 10PCS
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms L/C,T/T
Supply Ability 1000 tons per month
Delivery Time Depends on quantity
Packaging Details IRON FRAME WOODEN CASE
Base Tube Material ASTM A179 Seamless Carbon Steel
Fin Material Carbon Steel
Fin Embedding Process Pressure-Embedded (Cold Worked)
Max Operating Temperature 350°C
Brand Name YUHONG
Model Number Embedded Finned Tubes
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T Supply Ability 1000 tons per month
Delivery Time Depends on quantity Packaging Details IRON FRAME WOODEN CASE
Base Tube Material ASTM A179 Seamless Carbon Steel Fin Material Carbon Steel
Fin Embedding Process Pressure-Embedded (Cold Worked) Max Operating Temperature 350°C
Brand Name YUHONG Model Number Embedded Finned Tubes
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 Place of Origin CHINA
High Light CS embedded fins boiler tubesA179 fin tubes heat exchangersembedded fin tubes air preheaters


Embedded Finned Tubes - ASTM A179 Carbon Steel Base Tube with Carbon Steel Fins



1. Product Introduction: Embedded Finned Tubes


Embedded finned tubes combine an ASTM A179 seamless carbon steel base tube with carbon steel fins using a pressure-embedding process. This design increases surface area by 8–12x versus bare tubes, enhancing heat transfer efficiency by 40–60% in applications like boilers, air preheaters, and thermal oil systems. Our tubes operate at temperatures up to 450°C and pressures ≤6.5 MPa.


2. Structure & Manufacturing Process


Component Material Embedding Process
Base Tube ASTM A179 Carbon Steel High-pressure rollers embed fins into helical grooves cut into the base tube.
Fins Carbon Steel (CS) Fins are cold-worked into grooves, creating a metallurgical bond with zero contact resistance.
Bond Integrity Tensile strength >50 MPa (tested per ASTM E8/E8M).


3. Material Chemical Composition (ASTM Standards)


Base Tube (ASTM A179):


Element C (%) Mn (%) P (%) max S (%) max Si (%)
Content 0.06–0.18 0.27–0.63 0.035 0.035 0.10–0.50


Fins (Carbon Steel):


Element C (%) Mn (%) P (%) max S (%) max Fe (%)
Content ≤0.25 0.30–0.90 0.040 0.040 Balance


4. Dimensional Tolerances



Parameter Tolerance
Base Tube OD ±0.15 mm (e.g., 25.4 mm, 31.8 mm)
Fin Height ±0.20 mm (Typ: 12.7–15.9 mm)
Fin Density ±1 fin/meter (Range: 157–472 fins/m)
Length +3 mm / -0 mm (Max: 18 meters)



5. Performance Advantages


  • Corrosion Resistance: CS fins protect base tubes in flue gas (SO₂ ≤ 500 ppm) and humid environments.


  • Thermal Efficiency: Fin-to-tube bond eliminates air gaps, achieving thermal conductivity of 45–50 W/m·K.


  • Mechanical Durability: Withstands 30+ years of thermal cycling; fin pull-off force >60 N/mm.


  • Fouling Resistance: Helical fin design reduces ash/sediment buildup by 35% vs. spiral fins.


6. Application Areas


  • Energy & Power: Boilers (waste heat recovery), air preheaters, economizers.


  • Petrochemical: Thermal oil heaters, reformers, hydrogen plants.


  • HVAC: Industrial air dryers, heat recovery ventilators.


  • Marine: Exhaust gas boilers, fuel oil heaters.


7. Why Choose Our Finned Tubes?


  • 25+ Years of Expertise: 500+ projects delivered globally (EU, MENA, ASEAN).


  • Certified Quality: ISO 9001, ASME Section II compliance; hydrostatic tested at 1.5x design pressure.


  • Custom Solutions: Tailor fin density, tube length, and alloy combinations (e.g., SS304 fins for corrosive media).


  • Lifetime Support: Technical consultancy + non-destructive testing (NDT) reports provided.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...   Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...

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  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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