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High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin

High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin

  • High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin
  • High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin
  • High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin
  • High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin
High Frequency Welded Serrated Finned Tube TP304H Base / SS304 Fin
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: Serrated Finned Tube
Payment & Shipping Terms:
Minimum Order Quantity: 10PCS
Price: Negotiable
Packaging Details: IRON FRAME WOODEN CASE
Delivery Time: Depends on quantity
Payment Terms: L/C,T/T
Supply Ability: 1000 tons per month
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Detailed Product Description
Fin Type: HFW Serrated Base Tube Material: ASTM TP304H
Fin Material: SS304 / UNS S30400 Welding Technology: High-Frequency Welding
Fin Density (Fins/inch): 5-15 (Customizable) Application Industry: Boilers, Waste Heat Recovery
Highlight:

Serrated Finned Tube

,

High Frequency Welded Finned Tube

,

SS304 Finned Tube

 

 HIGH-FREQUENCY WELDED SERRATED FINS: THE ULTIMATE HEAT TRANSFER ACCELERATOR

 

Base Tube: TP304H ASTM A213 | Fins: SS304 ASTM A167

 

Superior Material Synergy

 

Engineered for Extreme Thermal Efficiency & Corrosion Resistance


Our bimetallic finned tubes leverage the synergistic properties of:

 

  • Base Tube: TP304H Austenitic Stainless Steel (High-Temperature Grade)

 

  • Fins: SS304 Stainless Steel with Serrated Edge Design

 

Chemical Composition (ASTM Verified)

 

 

Component TP304H Base Tube (%) SS304 Fins (%)
Carbon 0.04-0.10 ≤0.08
Chromium 18.0-20.0 18.0-20.0
Nickel 8.0-11.0 8.0-11.0
Manganese ≤2.00 ≤2.00
Silicon ≤1.00 ≤1.00
Phosphorus ≤0.045 ≤0.045
Sulfur ≤0.030 ≤0.030

 

Precision Manufacturing Process

 

High-Frequency Resistance Welding (HFRW) Technology

 

  1. Surface Preparation: Vapor degreasing + Abrasive blasting (Sa 2.5)
  2.  
  3. Fin Winding: CNC-controlled tension @ 300-500 N/mm²
  4.  
  5. Welding: 400 kHz HF current creates metallurgical bond
  6.  
  7. Serration: Laser-cut discontinuous edges (Depth: 2-3mm, Pitch: 5-8mm)
  8.  
  9. Annealing: 1050°C solution treatment + rapid quenching
  10.  

Bond Strength: >50 MPa (Per ASME Section IX)


Fin Adhesion: 100% visual inspection & shear tested

 

 

Dimensional Tolerance Excellence

 

ASME B36.19 Compliant

 

Parameter Tolerance Range
Base Tube OD ±0.10 mm (6.35-38.1 mm)
Fin Height ±0.20 mm (12-25 mm)
Fins per Inch (FPI) ±1 fin (4-12 FPI)
Fin Thickness ±0.05 mm (0.3-1.2 mm)
Straightness ≤1.5 mm/m length

 

Critical Application Domains

 

Where Our Tubes Excel

 

Industry Equipment Temp Range
Power Generation HRSG Economizers/Superheaters 400-650°C
Petrochemical Cracked Gas Heat Exchangers 300-550°C
Waste Incineration Flue Gas Condensers 200-450°C
Marine Exhaust Gas Boilers 250-500°C
HVAC Industrial Dehumidifiers -40 to 120°C

 

Competitive Advantages

 

Why Global Leaders Choose Us

 

  • Thermal Performance: 45-65% higher HTC vs. smooth tubes (Per TEMA standards)
  •  
  • Fouling Resistance: Serration disrupts boundary layer - 30% longer run cycles
  •  
  • Corrosion Safety: Passivated surface (ASTM A380 compliant)
  •  
  • Pressure Rating: 35 MPa @ 600°C (TP304H proof strength)
  •  
  • Certifications: ISO 9001, PED 2014/68/EU, ASME Section VIII Div.1

Tag:

finned copper tube,

heat exchanger fin tube,

extruded finned tube

Contact Details
Yuhong Group Co.,Ltd

Contact Person: Freya

Tel: +8617276485535

Fax: 0086-574-88017980

Send your inquiry directly to us (0 / 3000)

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