18 inch ASME B16.9 Butt Weld Elbow Dimensions
18 inch (DN 450) to ASME B16.9: OD at bevel 457.0 mm; 90° long radius 686 mm; 45° long radius 286 mm; 90° short radius 457 mm; 180° LR return 1372 mm.
Key to dimensions
- OD
- Outside diameter at the bevel
- A
- Centre-to-end, 90° elbow (long radius, short radius or 3D)
- B
- Centre-to-end, 45° elbow
- O
- Centre-to-centre, 180° return
- K
- Back-to-face, 180° return
18 inch ASME B16.9 Butt Weld Elbow Dimensions — all dimensions
Elbows and 180° returns (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 450 | |
| at bevel — OD | 457.0 mm | 17.99 in |
| 90° long radius — A | 686 mm | 27.01 in |
| 45° long radius — B | 286 mm | 11.26 in |
| 90° short radius — A | 457 mm | 17.99 in |
| 180° LR return — O | 1372 mm | 54.02 in |
| 180° LR return — K | 914 mm | 35.98 in |
| 90° 3D — A | 1372 mm | 54.02 in |
| 45° 3D — B | 568 mm | 22.36 in |
Values are nominal, from ASME B16.9 Butt Weld Elbow Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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18 inch ASME B16.9 Butt Weld Elbow Dimensions: common questions
What are the 18 inch ASME B16.9 Butt Weld Elbow Dimensions?
18 inch (DN 450) to ASME B16.9: OD at bevel 457.0 mm; 90° long radius 686 mm; 45° long radius 286 mm; 90° short radius 457 mm; 180° LR return 1372 mm.
Does Teshi Group manufacture 18 inch butt weld fittings?
Yes. Teshi Group is an OEM manufacturer in India of butt weld fittings to ASME B16.9, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 18 inch dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full ASME B16.9 Butt Weld Elbow Dimensions chart.
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