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YUHONG HOLDING GROUP CO., LTD

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China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes
China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes

  1. China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes
  2. China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes
  3. China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes
  4. China U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes

U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes

  1. MOQ: 2PC
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms TT, LC
Supply Ability 100 tons/month
Delivery Time 20-60 days
Packaging Details Ply-wooden Case
Product U Return Bend Tube / 180° Elbow
Material Carbon Steel
Standard ASTM A179
Grade A179
Use U bend finnd tubes
Packing Ply-wooden Case
Brand Name Yuhong
Model Number ASTM A179
Certification ABS, BV, DNV, CCS, LR
Place of Origin China

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  1. Product Details
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Product Specification

Payment Terms TT, LC Supply Ability 100 tons/month
Delivery Time 20-60 days Packaging Details Ply-wooden Case
Product U Return Bend Tube / 180° Elbow Material Carbon Steel
Standard ASTM A179 Grade A179
Use U bend finnd tubes Packing Ply-wooden Case
Brand Name Yuhong Model Number ASTM A179
Certification ABS, BV, DNV, CCS, LR Place of Origin China
High Light 180 Degree Elbow Return BendCarbon Steel Return BendASTM A179 Return Bend

U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes

 

The return bend in finned tubes is a crucial component in heat exchanger systems, particularly in applications like air-cooled heat exchangers (ACHEs), boilers, and economizers. It allows the tubing to make a 180-degree turn, enabling continuous flow within a multi-row or multi-pass configuration.

 

A179 refers to a low-carbon steel tube material specification (ASTM A179/A179M) commonly used in heat exchangers and condenser applications. When used in finned tubes with return bends, these components are typically found in air-cooled heat exchangers, boilers, and other thermal systems.

 

Chemical Composition (%)

 

Grade C Mn P S
A179 0.06-0.18 0.27-0.63 0.035 0.035

 

Mechanical Properties    Low-carbon steel (similar to A192 but with tighter tolerances).

 

Grade Tensile Strength,min Yield Strength (0.2%Offset,min)
A179 47ksi (325 MPa) 26ksi (180 MPa)


Key Characteristics:


Excellent thermal conductivity
Good weldability and formability
Suitable for low to medium-pressure applications
Often used in bare or finned tubes for condensers and heat exchangers

 

Return Bend Function:

 

Connects two finned tubes to form a continuous flow path;

Ensures efficient heat transfer by maintaining fluid circulation.

 

Return Bend Design Considerations


Bend Radius:

Typically short-radius (1xD) or long-radius (1.5xD) depending on flow requirements.


Fin Attachment:
Fins are usually extruded, embedded, or welded on straight sections.
The return bend itself is often left unfinned (bare) for ease of manufacturing.


Connection Methods:
Welded return bends (common for high-integrity applications).
Mechanical (press-fit or threaded) connections for easier maintenance.

 

Applications


Condensers & Heat Exchangers (e.g., power plants, refineries)
Boiler Economizers

HVAC & Refrigeration Systems
Industrial Process Heating/Cooling

 

 

 

 

 

 

 

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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