products details

Home > Products >

Return Bend

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

All Category

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Nickel Alloy Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Carbon Steel Boiler Tube

Ms. Isabel Yao (Spanish Marketing Seller)

isabela@steelseamlesspipe.com

+8615906753302

Contact Now

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

Brand Name:	Yuhong
Model Number:	ASTM A179
MOQ:	2PC
Price:	Negotiable
Packaging Details:	Ply-wooden Case
Payment Terms:	TT, LC

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

ABS, BV, DNV, CCS, LR

Product:

U Return Bend Tube / 180° Elbow

Material:

Carbon Steel

Standard:

ASTM A179

Grade:

U Bend Finnd Tubes

Packing:

Ply-wooden Case

Supply Ability:

100 tons/month

Highlight:

180 Degree Elbow Return Bend

Carbon Steel Return Bend

ASTM A179 Return Bend

Product Description

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

U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes 0

Tags:

180 Deg U Bend Return

Duplex Steel tube

Return Bend Incoloy 800H

U Bend Return , ASTM A403 WP347H 180 Degree Elbow, Short Radius, Heat Exchanger , Boiler

Get Best Price

U Bend Return , ASTM B366 Incoloy 800H 180 Deg. Elbow, Heat Exchanger

Get Best Price

ASTM A815 WP-S S32205 Duplex Steel U Bend Return , Heat Exchanger , Boiler

Get Best Price

ASTM A815 UNS S32205 Duplex Steel U Bend Return , Heat Exchanger , Boiler

Get Best Price

U Bend Return , ASTM B366 C22 , NO6022 Hastelloy 180Deg. Elbow SR , Fired Heater

Get Best Price

180 Deg. Short Radius, U Bend Return, ASME SA234 WPB For Fired Heater Convection Section

Get Best Price

U Bend Return, 180 Deg. Short Radius, ASME SA234 WP9 4" SCH40 B16.28 For Fired Heater Radiant Section

Get Best Price

ASTM A403 WP316L-S Stainless Steel 180 Degree Return Bend For Oil&Gas Industry

Get Best Price

Products Details

Home > Products >

Return Bend

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

All Category

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

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

Brand Name:	Yuhong
Model Number:	ASTM A179
MOQ:	2PC
Price:	Negotiable
Packaging Details:	Ply-wooden Case
Payment Terms:	TT, LC

Detail Information

Product Description

Detail Information

Place of Origin:

China

Brand Name:

Yuhong

Certification:

ABS, BV, DNV, CCS, LR

Model Number:

ASTM A179

Product:

U Return Bend Tube / 180° Elbow

Material:

Carbon Steel

Standard:

ASTM A179

Grade:

A179

Use:

U Bend Finnd Tubes

Packing:

Ply-wooden Case

Minimum Order Quantity:

2PC

Price:

Negotiable

Packaging Details:

Ply-wooden Case

Delivery Time:

20-60 days

Payment Terms:

TT, LC

Supply Ability:

100 tons/month

Highlight:

180 Degree Elbow Return Bend

Carbon Steel Return Bend

ASTM A179 Return Bend

Product Description

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

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

U Return Bend 180 Degree Elbow Carbon Steel ASTM A179 For Bend Finned Tubes 0

Tags:

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube