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YUHONG HOLDING GROUP CO., LTD

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China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For
China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For

  1. China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For
  2. China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For
  3. China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For
  4. China ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For

ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For

  1. MOQ: 100kgs
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms TT, LC
Delivery Time 7days
Packaging Details plastic woven bags, ply-wooden case with iron steel case
Base Pipe Material P9, P22
Application Boiler, Economizer
Length Max.: 34m/pc
Welding Type HFW , GMAW, LASER
Production Process Cold Drawn
Fin Wall Thickness 0.8-3mm
Fin Material Grade 11Cr
Fin Thick 0.8mm-3mm
Brand Name Yuhong
Model Number ASTM A335 P22
Certification ABS, BV, DNV, CCS, LR
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms TT, LC Delivery Time 7days
Packaging Details plastic woven bags, ply-wooden case with iron steel case Base Pipe Material P9, P22
Application Boiler, Economizer Length Max.: 34m/pc
Welding Type HFW , GMAW, LASER Production Process Cold Drawn
Fin Wall Thickness 0.8-3mm Fin Material Grade 11Cr
Fin Thick 0.8mm-3mm Brand Name Yuhong
Model Number ASTM A335 P22 Certification ABS, BV, DNV, CCS, LR
Place of Origin China
High Light Economizer Fin TubeASTM A335 P22 Fin TubeHigh Frequency Welding Fin Tube

 ASTM A335 P22 Alloy Steel Seamless Tube High Frequency Welding Fin Tube For Economizer


Product Overview

The ASTM A335 P22 HFW Fin Tube is a high-efficiency heat transfer component, crafted by welding serrated or solid alloy fin strips onto a seamless P22 alloy steel tube using high-frequency resistance welding. It is specifically engineered for economizer coils in power plants, industrial boilers, and waste heat recovery systems, where high temperature and pressure resistance are critical.


Chemical Composition

Base Tube – ASTM A335 P22

Element Composition (%)
Carbon (C) 0.05–0.15
Manganese (Mn) 0.30–0.60
Phosphorus (P) ≤ 0.025
Sulfur (S) ≤ 0.025
Chromium (Cr) 1.90–2.60
Molybdenum (Mo) 0.87–1.13

Fin Material – 11-13Cr Strip

Element Composition (%)
Chromium (Cr) 11.0–13.0
Carbon (C) ≤ 0.08
Manganese (Mn) ≤ 1.0
Silicon (Si) ≤ 1.0
Phosphorus (P) ≤ 0.040
Sulfur (S) ≤ 0.030

Mechanical Properties

Base Tube – ASTM A335 P22

Property Value
Tensile Strength ≥ 415 MPa
Yield Strength ≥ 205 MPa
Elongation ≥ 30%
Hardness ≤ 163 HB

Fin Material (Typical)

Property Value
Tensile Strength Approx. 450–600 MPa
Yield Strength Approx. 250–350 MPa
Hardness 150–180 HB
Heat Resistance Up to 600°C (continuous)


Advantages

  • Superior Heat Transfer: HFW process ensures close bonding between fins and tube, maximizing surface area and thermal performance.

  • Durability Under Pressure: P22 alloy steel offers high strength and creep resistance, making it suitable for high-pressure steam applications.

  • Oxidation & Corrosion Resistance: Chromium-molybdenum alloy composition provides strong resistance to oxidation, scaling, and corrosion at elevated temperatures.

  • Enhanced Lifespan: Serrated fins improve turbulence and cleaning efficiency, reducing fouling and increasing operational life.

  • Cost Efficiency: Ideal for long-term operation in power plants, reducing maintenance frequency and downtime


Applications

  • Boiler Economizers in Thermal Power Plants

  • Waste Heat Recovery Boilers (WHRB)

  • Refinery Heaters and Process Units

  • Chemical Plant Steam Generators

  • Industrial Heat Recovery Systems

  • Preheater Sections of Steam Generating Units

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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  • 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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