logo

Yuhong Holding Group Co.,LTD

About Us
Factory Tour
Quality Control
Contact Us
Company News
Home ProductsFin Tube

Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler

Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler

  • Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler
  • Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler
  • Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler
  • Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler
Serrated Finned Tubes | High Frequency Welded | T22 Base Tube & CS Fins for HRSG / Boiler
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: High-Frequency Welded (HFW) Serrated
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
Contact Now
Detailed Product Description
Base Tube Material: ASTM A213 T22 Alloy Steel In Material: Carbon Steel (CS)
Fin Type: High-Frequency Welded Serrated Application: Heat Exchanger, Boiler, Economizer, HRSG
Highlight:

Serrated finned tubes for HRSG

,

High frequency welded fin tubes

,

T22 base tube CS fins


High-Frequency Welded Serrated Finned Tubes Base Tube: T22 Alloy Steel | Fins: Carbon Steel (CS)


T22-CS Synergy: Advanced Heat Transfer Solution

Our high-frequency welded serrated finned tubes combine T22 alloy steel base tubes with carbon steel (CS) fins for


 unmatched thermal efficiency in extreme environments. The T22 base tube delivers superior high-temperature strength


 (up to 550°C), while CS fins maximize heat dissipation through serrated edges that disrupt boundary layers. Ideal for


 boilers, HRSGs, and waste-heat recovery systems.


Precision Chemistry: T22 & CS Composition


Optimized for Corrosion Resistance and Thermal Conductivity


Component Material C (max) Mn Si Cr Mo P (max) S (max)
Base Tube T22 Alloy  0.15% 0.30–0.60% ≤0.50% 1.90–2.60% 0.87–1.13% 0.025% 0.025%
Fins Carbon Steel 0.25% 0.60% ≤0.35% 0.035% 0.035%


Notes: T22 resists oxidation in steam environments; CS fins enhance thermal conductivity (45–50 W/m·K).


T22-CS Dimensional Tolerances: Engineered Accuracy


Guaranteed Fit for Critical Applications


Parameter Tolerance Standard
Base Tube OD ±0.15 mm ASTM A450
Wall Thickness +10% / -5% EN 10204-3.1
Fin Height ±0.25 mm Custom
Fin Density (FPI) ±1 fin/inch ASME PTC 30
Straightness ≤1.5 mm/m ISO 9393


T22-CS Application Domains


  1. Power Generation: Boiler economizers (coal/gas-fired plants), air preheaters.


  1. Petrochemical: Waste-heat recovery in reformers & crackers (operating temp: 400–550°C).


  1. Marine: Exhaust gas boilers for LNG carriers.


  1. Industrial HVAC: High-efficiency heat exchangers in chemical processing.


Customization: T22-CS Tailored Solutions


  • Dimensions: Base tubes: 25–150 mm OD; Fin heights: 10–20 mm; Lengths: ≤20m.


  • Fin Configurations: Serrated (standard), solid, or L-footed fins.


  • Coatings: Hot-dip galvanizing (fin-only) or aluminizing for acid gas resistance.


  • Certifications: EN 10204 3.1, ASME Section I compliance.


Why Our T22-CS Finned Tubes?

✅ 15+ Years Expertise: 500+ projects in power/petrochemical sectors.



✅ Zero-Gap Welding: High-frequency welding ensures >98% fin bond integrity (tested per ASTM E290).



✅ Quality Assurance: 100% eddy-current testing, hydrostatic pressure checks (60 bar min).



✅ Lead Time: 30 days for standard orders; 45 days for custom specs.



✅ Global Compliance: CE, PED, and ASME stamps available.

Contact Details
Yuhong Group Co.,Ltd

Contact Person: Freya

Tel: +8617276485535

Fax: 0086-574-88017980

Send your inquiry directly to us (0 / 3000)