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MS Buttweld 'C' Class

180° Return Bend

Mild Steel · ASME B16.9 · 20 sizes

← All C Class (Heavy)

MS Buttweld 'C' Class

Buttweld 180° Return Bend

7307MSW18C001

Material
Mild Steel (IS 1239 Part 2 / IS 2062 Gr. A)
Type
Welded (ERW)
Angle
180°
Radius (R)
15.88 mm (1.25D)
Overall width (O + D)
53.1 mm
Schedule
Class C (Heavy)
End Connection
Beveled End
Dimension Standard
ASME B16.9
Temperature
-10°C to 300°C
Pressure Rating
~63 bar (IS 1239 Class C, Heavy)
HSN Code
73079300
GST
18%
Schematic: letters match the table columns
Illustration of a 180° return bend (buttweld fittings), on a light grey backgroundIllustration

6 columns · scroll sideways

SizeNPSOD (D)mmWall (t)mmCenter-to-End (A)mmOverall width (O + D)mmRadius (R)mm
1/2" NB21.32.515.8853.115.88 (1.25D)
3/4" NB26.72.523.8174.323.81 (1.25D)
1" NB33.43.531.7596.931.75 (1.25D)
1-1/4" NB42.23.539.69121.639.69 (1.25D)
1-1/2" NB48.34.047.62143.647.63 (1.25D)
2" NB60.33.563.50187.363.50 (1.25D)
2-1/2" NB73.04.079.37231.879.38 (1.25D)
3" NB88.94.095.25279.495.25 (1.25D)
4" NB114.34.5127.00368.3127.00 (1.25D)
5" NB141.34.5158.75458.8158.75 (1.25D)
6" NB168.34.5190.50549.3190.50 (1.25D)
8" NB219.15.5254.00727.1254.00 (1.25D)
10" NB273.05.5317.50908.0317.50 (1.25D)
12" NB323.85.5381.001085.8381.00 (1.25D)
14" NB355.65.5444.501244.6444.50 (1.25D)
16" NB406.45.5508.001422.4508.00 (1.25D)
18" NB457.25.5571.501600.2571.50 (1.25D)
20" NB508.05.5635.001778.0635.00 (1.25D)
22" NB558.85.5698.501955.8698.50 (1.25D)
24" NB609.65.5762.002133.6762.00 (1.25D)

Pricing: prices for this product are not listed. Request a quotation.

Certification
All relevant test certificates or document will be provided.
Coating
Anticorrosion Paint Charges Included and Hot Dip Galvanizing Coating (GI), Epoxy Coating Charged Extra.
Taxes & Duties
GST and any other statutory levies shall be charged extra at applicable rates.

All dimensions in millimetres. Subject to change without notice. Spotted a mistake or wrong data? Please contact us.

About the 180° return bend

The 180° return bend (U-bend) reverses the flow direction in a single fitting. Used in heat exchangers, coil arrangements, hairpin heat exchangers, and pipe loops where the pipe must double back on itself.

  • Full 180° flow reversal in a single factory-made fitting
  • Available in Long Radius (1.5D) and Short Radius (1.0D) per ASME B16.9
  • 1.25D radius for mild steel
  • Two centre-to-end dimensions (A and B) defining the overall envelope
  • Matched bore to pipe: no step or projection at weld

Applicable Standards

Standards governing design, dimensions, and testing

ASME B16.9

Factory-Made Wrought Buttwelding Fittings

Covers the full range of industrial butt weld fittings (elbows, tees, reducers, caps, returns) in carbon steel, alloy steel, and stainless steel from ½" to 48" NB.

  • Applies to NPS ½" through 48" (DN 15 through DN 1200)
  • Schedule wall: STD / XS / XXS plus full SCH range
  • Radius: Long Radius (LR) 1.5D and Short Radius (SR) 1.0D elbows
  • Dimensional tables are the only source of 'legal' wall thickness
  • No pressure-temperature rating: use ASME B31.3 / B31.1 with pipe schedule
  • End prep: per ASME B16.25 bevel

More in C Class (Heavy)

MS Buttweld 'C' Class

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