304L Stainless Steel 180-Degree Return Bend

The 304L Stainless Steel 180-Degree Return Bend is a butt-weld pipe fitting that reverses a pipe run through 180 degrees. Its parallel ends create a return path within a compact piping arrangement.

304L stainless steel is identified as UNS S30403. For wrought stainless steel fittings, ASTM A403 WP304L is a commonly specified material designation. Standard dimensions can be produced to ASME B16.9 where applicable.

180° Return Path
The fitting turns the pipe run back toward its original direction without combining separate directional fittings.

Parallel Ends
The two connection ends remain aligned with the return geometry, supporting direct integration into return loops and equipment piping.

304L Construction
The low-carbon 304L grade is commonly used in welded stainless steel piping where the specified material grade matches the service conditions.

Butt-Weld Connection
Beveled ends provide a weld-ready connection to compatible pipe. End preparation follows the specified pipe size and wall thickness.

304L Grade
304L is an austenitic stainless steel grade used for many industrial and process piping applications. Its low carbon content is relevant to welded assemblies where 304L is specified.

Heat Identification
Material heat information can be recorded with production documentation. This provides a reference between incoming material and the finished fitting.

Specification Matching
Material selection should correspond with the service medium, operating temperature, pressure conditions, welding procedure, and project specification.

Pipe Size
Confirm the nominal pipe size or actual outside diameter before production. The fitting end must correspond with the mating pipe.

Wall Thickness
Specify schedule or wall thickness because it affects the fitting end geometry and weld preparation.

Center-to-Center
The center-to-center dimension controls the distance between the two return legs. It is a key installation dimension for piping layout and equipment clearance.

Back-to-Face
Back-to-face determines the overall projection of the return bend. It should be checked against supports, adjacent lines, and equipment connections.

Process Piping
Used for return sections in process lines where the piping route needs a 180-degree directional change.

Equipment Piping
Suitable for selected connections around vessels, pumps, heat exchangers, and process equipment where parallel pipe ends simplify the return arrangement.

Fluid Systems
Applicable to water handling, food processing, chemical processing, and general industrial piping systems where 304L meets the specified service requirements.

Material Preparation
304L material is identified by grade and heat information before forming. Material dimensions are checked against the production specification.

Forming
The fitting is formed to the required 180-degree profile. Key controls include bend geometry, end alignment, and wall condition through the formed section.

End Preparation
Ends are cut and beveled to match the specified pipe dimensions and welding configuration.

Surface Finishing
The fitting can be pickled, polished, or supplied with another specified finish after forming and end preparation.

Dimensional Inspection
Inspection covers outside diameter, wall thickness, bend angle, center-to-center dimension, back-to-face dimension, and end alignment.

Material Verification
Material identification can include grade verification and heat-number records according to the applicable inspection requirements.

Surface Inspection
The formed body and weld ends are visually checked for surface conditions that may affect fit-up, finishing, or installation.

Documentation
Material and inspection records can be prepared according to the required project documentation level.

Confirm these details before requesting a quotation:
● Material: 304L / UNS S30403
● Material specification: ASTM A403 WP304L, where applicable
● Nominal pipe size or outside diameter
● Schedule or wall thickness
● 180-degree return configuration
● Long-radius or specified radius
● Center-to-center dimension
● Back-to-face dimension
● Applicable dimensional standard
● Butt-weld end preparation
● Surface finish
● Quantity
● Drawing or project specification, if available

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