China factories

Chat Now Send Email
China factory - Yuhong Group Co.,Ltd

Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power
China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power

  1. China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power
  2. China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power
  3. China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power
  4. China High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power

High-Performance ASTM A312 TP304H Serrated Finned Tubes for Thermal Power

  1. MOQ: 500kgs
  2. Price: To be discussed
  3. Get Latest Price
Delivery Time 50-120 days
Payment Terms L/C,T/T
Material ASTM A312 TP304H
Application Waste Heat Recovery Systems
Supply Ability 5000 meters/day
Product Fin Tube
Package Iron frame wooden case
Packaging Details Iron frame wooden case
Model Number N/A
Brand Name YUHONG
Certification ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834
Place of Origin China

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal
  1. Product Details
  2. Company Details

Product Specification

Delivery Time 50-120 days Payment Terms L/C,T/T
Material ASTM A312 TP304H Application Waste Heat Recovery Systems
Supply Ability 5000 meters/day Product Fin Tube
Package Iron frame wooden case Packaging Details Iron frame wooden case
Model Number N/A Brand Name YUHONG
Certification ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 Place of Origin China
High Light ASTM A312 TP304H finned tubesserrated fin tubes for thermal powerhigh-performance fin tubes with warranty
ASTM A312 TP304H Serrated Finned Tubes for Thermal Power Generation
Product Overview

Our welded serrated finned tubes utilize premium ASTM A312 TP304H austenitic stainless steel base pipes, engineered specifically for high-stress, high-temperature thermal power generation environments. The high-carbon "H" grade provides superior creep rupture strength at temperatures exceeding 525°C (975°F), making it the definitive choice for utility boiler superheaters, reheaters, and waste heat recovery systems (HRSG).

By utilizing a serrated fin profile, this design introduces controlled turbulence into the gas stream. This configuration disrupts the thermal boundary layer far more effectively than solid fins, increasing the heat transfer coefficient by up to 15-20% while optimizing space and weight.

Technical Specifications & Size Ranges
Component Parameter Standard Range (Custom Available)
Base Tube Outer Diameter (OD) 15.88 mm – 168.3 mm (0.625" – 6.625")
Wall Thickness (WT) 1.65 mm – 12.7 mm (0.065" – 0.500")
Fins Fin Height 6.35 mm – 38.1 mm (0.25" – 1.50")
Fin Thickness 0.8 mm – 3.0 mm (0.030" – 0.120")
Fin Pitch (Density) 40 – 287 fins/meter (1 – 7 FPI)
Assembly Max Length Up to 25 meters (82 feet)
Material Engineering Data
1. Chemical Composition (ASTM A312 TP304H)

The controlled carbon content (0.04–0.10%) is critical. It guarantees high-temperature strength and long-term structural stability against phase transformation.

  • Carbon (C): 0.04% – 0.10%
  • Chromium (Cr): 18.00% – 20.00%
  • Nickel (Ni): 8.00% – 11.00%
  • Manganese (Mn): 2.00% max
  • Silicon (Si): 0.75% max
  • Phosphorus (P): 0.045% max
  • Sulfur (S): 0.030% max
2. Mechanical Properties
  • Tensile Strength: ≥ 515 MPa (75 ksi)
  • Yield Strength (0.2% Offset): ≥ 205 MPa (30 ksi)
  • Elongation (in 2 inches): ≥ 35%
  • Hardness: ≤ 192 HBW / 200 HV
Manufacturing & Quality Testing

Every tube undergoes rigorous quality assurance to meet the zero-tolerance safety mandates of modern thermal power plants.

  • High-Frequency Resistance Welding (HFRW): Ensures a continuous, 100% metallurgical bond between the base tube and the serrated fin to eliminate thermal resistance at the interface.
  • Non-Destructive Testing (NDT): 100% Eddy Current and Ultrasonic testing are performed on the base tubes prior to finning.
  • Hydrostatic Testing: Performed in accordance with ASTM A999 to guarantee pressure containment integrity.
  • Weld Pull Test: Destructive mechanical testing of fin-to-tube bond to ensure structural rigidity against thermal cycling and soot-blower impact.
  • Grain Size Verification: ASTM E112 tracking to verify grain size is No. 7 or coarser, ensuring optimal long-term high-temperature creep performance.
Key Application Benefits
  • Maximum Heat Flux: Serrated geometry creates localized vortex shedding, multiplying gas-side heat transfer efficiency.
  • Fouling Resistance: The segmented fin structure reduces ash accumulation zones compared to solid fins, making cleaning via soot-blowers highly efficient.
  • Oxidation Resistance: High chromium-nickel chemistry forms a stable protective oxide scale that resists flue gas corrosion at elevated temperatures.

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...

+ Read More

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/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement