MS Buttweld 'B' Class

180° Return Bend

Mild Steel · ASME B16.9 · 16 sizes

Request a quote for this item

← All B Class (Medium)

MS Buttweld 'B' Class

Buttweld 180° Return Bend

7307MSW18B001

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 B (Medium)
End Connection: Beveled End
Dimension Standard: ASME B16.9
Temperature: -10°C to 300°C
Pressure Rating: ~42 bar (IS 1239 Class B, Medium)
HSN Code: 73079300
GST: 18%

Schematic: letters match the table columns

Illustration

6 columns · scroll sideways

SizeNPS	OD (D)mm	Wall (t)mm	Center-to-End (A)mm	Overall width (O + D)mm	Radius (R)mm
1/2" NB	21.3	2.0	15.88	53.1	15.88 (1.25D)
3/4" NB	26.7	2.0	23.81	74.3	23.81 (1.25D)
1" NB	33.4	2.5	31.75	96.9	31.75 (1.25D)
1-1/4" NB	42.2	3.0	39.69	121.6	39.69 (1.25D)
1-1/2" NB	48.3	3.0	47.62	143.6	47.63 (1.25D)
2" NB	60.3	3.0	63.50	187.3	63.50 (1.25D)
2-1/2" NB	73.0	3.5	79.37	231.8	79.38 (1.25D)
3" NB	88.9	3.5	95.25	279.4	95.25 (1.25D)
4" NB	114.3	3.5	127.00	368.3	127.00 (1.25D)
5" NB	141.3	4.0	158.75	458.8	158.75 (1.25D)
6" NB	168.3	4.0	190.50	549.3	190.50 (1.25D)
8" NB	219.1	4.5	254.00	727.1	254.00 (1.25D)
10" NB	273.0	4.5	317.50	908.0	317.50 (1.25D)
12" NB	323.8	4.5	381.00	1085.8	381.00 (1.25D)
14" NB	355.6	4.5	444.50	1244.6	444.50 (1.25D)
16" NB	406.4	4.5	508.00	1422.4	508.00 (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 B Class (Medium)

MS Buttweld 'B' Class

Need a quotation or technical query?

Ask for 180° Return Bend pricing, availability, MTRs and custom sizes.

Request a quote for this item