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Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
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China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for
China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for

  1. China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for
  2. China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for
  3. China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for
  4. China High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for

High Frequency Welded Finned Tube - ASTM A335 P22 Base / 11-13Cr Fins for

  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 Standard ASTM A335 Gr.P22
Fin Material Composition 11-13% Chromium Steel
Fin Type Helical High Frequency Welded Fins
Typical Application Heat Recovery Steam Generators (HRSG)
Customization Available Yes
Key Advantage: High Temperature Resistance, Corrosion Resistance (Base)
Brand Name YUHONG
Model Number HFW FINNED TUBE
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 Standard ASTM A335 Gr.P22 Fin Material Composition 11-13% Chromium Steel
Fin Type Helical High Frequency Welded Fins Typical Application Heat Recovery Steam Generators (HRSG)
Customization Available Yes Key Advantage: High Temperature Resistance, Corrosion Resistance (Base)
Brand Name YUHONG Model Number HFW FINNED TUBE
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 Place of Origin CHINA
High Light High Frequency Welded Finned TubeASTM A335 P22 Finned Tube11-13Cr Fins for Boilers



High-Frequency Welded Finned Tubes: ASTM A335 P22 Base / 11-13Cr Fins - High Temp & Corrosion Resistant



Material Synergy: The Foundation of Performance


YUHONG High-Frequency Welded Finned Tubes combine the elevated temperature strength of ASTM A335 P22 alloy


 steel with the superior corrosion and oxidation resistance of 11-13% Chromium (Cr) steel fins. This material pairing is


 specifically engineered for applications where extreme heat, pressure, and corrosive atmospheres (such as flue gases


 containing sulfur compounds) would rapidly degrade standard finned tubes. The HFW process ensures a metallurgically


 sound, low-resistance bond between fin and tube, maximizing heat transfer efficiency and long-term structural integrity


 under thermal cycling.


Core Material Specifications: Precision Chemistry for Reliability


1. Base Tube Excellence: ASTM A335 P22 (Grade P22)


  • Standard: Conforms strictly to ASTM A335/A335M for seamless ferritic alloy-steel pipe for high-temperature service.


  • Key Properties: Exceptional creep strength, oxidation resistance, and microstructural stability up to 593°C (1100°F).


  • Chemical Composition (Typical Weight %):



Element ASTM A335 P22 Requirement Our Typical Range Key Role
Carbon (C) 0.05 - 0.15% 0.08 - 0.12% Strength, Hardenability
Manganese (Mn) 0.30 - 0.60% 0.35 - 0.55% Strength, Hardenability
Phosphorus (P) ≤ 0.025% ≤ 0.020% Impurity Control
Sulfur (S) ≤ 0.025% ≤ 0.015% Impurity Control
Silicon (Si) 0.50% max 0.20 - 0.40% Deoxidizer, Strength
Chromium (Cr) 1.90 - 2.60% 2.00 - 2.40% Oxidation Resistance
Molybdenum (Mo) 0.87 - 1.13% 0.90 - 1.05% High-Temp Strength, Creep Resistance


2. Fin Performance: 11-13% Chromium Steel


  • Material Type: Martensitic Stainless Steel.


  • Key Properties: Significantly enhanced resistance to oxidation, sulfidation (sulfur corrosion), and general corrosion compared to carbon steel fins, particularly in the critical 400-600°C (750-1110°F) range. Excellent thermal expansion match to P22 base tube.


  • Chemical Composition (Typical Weight %):



Element Requirement (11-13% Cr Steel) Our Typical Range Key Role
Carbon (C) 0.08 - 0.15% (max) 0.10 - 0.13% Strength, Hardness
Manganese (Mn) ≤ 1.00% 0.40 - 0.80% Deoxidizer, Strength
Phosphorus (P) ≤ 0.040% ≤ 0.030% Impurity Control
Sulfur (S) ≤ 0.030% ≤ 0.020% Impurity Control
Silicon (Si) ≤ 1.00% 0.30 - 0.70% Deoxidizer, Oxidation Resistance
Chromium (Cr) 11.0 - 13.0% 11.5 - 12.5% Primary Corrosion/Oxidation Resistance
Nickel (Ni) ≤ 0.60% (often present) ≤ 0.50% Toughness, Microstructure


Engineered Precision: Dimensions & Tolerances


We manufacture to exacting standards to ensure optimal fit and performance in your heat exchanger bundles.



Parameter Typical Range Standard Tolerance (±) Notes
Base Tube OD 16 mm  - 219 mm 0.15mm or 0.5% ASME B36.10M / Customer Spec
Fin Height (H) 5 mm  - 30 mm  0.5 mm Customer Spec
Fin Thickness (T) 0.8mm - 1.5mm 0.1 mm Customer Spec
Fins Pitch 4-25

/

/

Fin Root Weld Bond - 100% Visual Integrity Continuous, solid weld around the circumference
Tube Length (L) Up to 24 Meters +6mm / -0mm Cut to length precision
Tube Straightness - 1.5mm per meter Ensures easy bundling



Note: Tolerances can be tightened based on specific application requirements.


Engineered Solutions for Critical Applications


The P22 + 11-13Cr HFW Finned Tube combination excels in harsh environments:


  • Heat Recovery Steam Generators (HRSGs): Economizers, Evaporators, Superheaters exposed to flue gas corrosion.


  • Fossil Fuel & Biomass Power Plants: Boilers (Economizers, Air Preheaters), Flue Gas Ducts.


  • Chemical & Petrochemical Processing: Process heaters, reformers, sulfur recovery units (SRUs), waste heat boilers handling corrosive streams.


  • Refineries: FCC units, heaters, pre-heat trains.


  • Waste-to-Energy Plants: Boiler sections exposed to highly corrosive combustion gases.


  • Air Preheaters (Ljungström / Rothemühle Types): Heating elements in corrosive flue gas paths.


  • FGD Systems (Scrubbers): Inlet/outlet ducting requiring corrosion resistance.


  • Industrial Drying & Process Heating.


Tailored to Your Thermal Challenge: Customization



Your unique application demands precise solutions. We offer comprehensive custom manufacturing:


  1. Dimensions: Exact Base Tube OD, Wall Thickness, Fin Height, Fin Thickness, FPI, and overall Tube Length.


  1. Special Fin Profiles: Solid, serrated, embedded, studded (subject to material weldability).


  1. Material Variations: Consult us for other high-grade base tube/fin combinations (e.g., T11/T22/T91, 304/316/321, Alloy 825/625 fins).


  1. End Configurations: Bare ends, grooved ends, flanged, specific bevels for welding.


  1. Bundling & Header Integration: Kitted bundles, complete headers/manifolds (scope defined).


  1. Protective Coatings: Shop primer or specialized high-temp coatings available.

Why Partner With Us? Expertise & Quality Assured


  • Decades of Metallurgical & Fabrication Expertise: Over 10 years specializing in high-performance finned tubes for extreme service. Deep understanding of material behavior under heat and corrosion.


  • Rigorous Quality Control: Full traceability (MTCs), chemical analysis, dimensional checks, visual weld inspection (100%), hydrostatic testing (upon request), and adherence to ISO 9001:2015.


  • Advanced HFW Technology: State-of-the-art finning machines ensuring consistent, high-integrity welds crucial for P22/11-13Cr performance.


  • Global Project Experience: Proven track record supplying reliable finned tubes for critical power, petrochemical, and industrial projects worldwide.


  • Technical Collaboration: Our engineering team partners with you to optimize design for performance, durability, and cost-effectiveness.


  • Competitive Value: Premium quality combined with efficient manufacturing and global logistics for total cost advantage.


  • Dedicated Export Support: Seamless documentation, packaging, and shipping compliance.


Ready to Enhance Your Heat Exchanger Reliability?



Contact our technical sales team today for a detailed quote, technical consultation, or to discuss your specific ASTM A335 P22 / 11-13% Cr HFW finned tube requirements. Let our expertise solve your high-temperature corrosion challenge



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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Get in touch with us

  • Reach Us
  • 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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