ASTM A213 T22 HFW Serrated Finned Tube With Carbon Steel Fins For Furnace

ASTM A213 T22 HFW Serrated Finned Tube With Carbon Steel Fins For Furnace

ASTM A213 T22 HFW Serrated Finned Tube with Carbon Steel Fins is a specialized type of heat exchanger tube designed for high-efficiency thermal transfer in boilers, superheaters, and other high-temperature/pressure applications. Here’s a detailed breakdown of its components and characteristics:

1. Base Tube Specifications

(1) Chemical Composition (Weight %)

Notes:

Key Alloying Elements: Cr and Mo provide oxidation resistance and high-temperature strength.

Low S/P: Minimizes hot cracking during welding.

(2) Mechanical Properties

Additional Requirements:

Heat Treatment:

T22 tubes are typically supplied in the normalized and tempered condition (e.g., 900–950°C normalized, 680–730°C tempered).

High-Temperature Performance:

Creep Strength: ~34 MPa at 600°C (1,112°F) for 100,000 hours.

Oxidation Resistance: Stable up to 580°C (1,076°F) in steam environments.

(3) Key Applications

• Boiler Tubes: Superheaters, reheater tubes.
• Heat Exchangers: Refineries, power plants.
• Pressure Vessels: ASME SA-199 T22 for seamless pipes.

2. Fin Design

Fin Type: Serrated Fins

• Structure: Fins are cut into discontinuous segments (serrations) to disrupt boundary layers, enhancing heat transfer by 20-30% compared to smooth fins.
• Material: Carbon steel fins (typically ASTM A179 or A192 for compatibility with the base tube).

Key Benefits:

• Turbulence generation for improved heat exchange.
• Reduced fouling in dirty gas/fluid environments.

3. Comparison to Alternatives

4. Key Considerations for Buyers

Fin Density: Typically 5-11 fins per inch (FPI), depending on gas flow requirements.

Corrosion Protection: Optional aluminization or ceramic coating for harsh environments.

Customization: Fin height, thickness, and serration pattern can be tailored

The ASTM A213 T22 HFW Serrated Finned Tube with Carbon Steel Fins is a high-performance heat transfer component designed for demanding industrial applications. Here’s a detailed breakdown of its key applications and advantages:

1.Primary Applications

A. Power Generation

• Boilers & Superheaters:
  • Used in coal-fired, gas-fired, and biomass power plants to enhance heat recovery from flue gases.
  • Why T22? The 2.25% Cr-1% Mo alloy resists oxidation and creep at temperatures up to 580°C (1,076°F).
• Economizers:
  • Preheats feedwater by recovering waste heat from exhaust gases, improving plant efficiency.

B. Oil & Gas/Petrochemical

• Waste Heat Boilers:
  • Recovers energy from process gases (e.g., refinery catalytic crackers).
• Fired Heaters:
  • Serrated fins disrupt boundary layers, reducing fouling in hydrocarbon processing.

C. Industrial Heat Exchangers

• Air Preheaters:
  • Preheats combustion air using exhaust gases (common in cement/steel plants).
• Process Heaters:
  • Transfers heat in chemical reactors or distillation columns.

D. HVAC & Energy Recovery

• Heat Recovery Steam Generators (HRSGs):
• Captures heat from gas turbine exhaust to produce steam.

2. Why Choose This Combination?

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.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.