12 inch ASME B16.9 Butt Weld Elbow Dimensions
12 inch (DN 300) to ASME B16.9: OD at bevel 323.8 mm; 90° long radius 457 mm; 45° long radius 190 mm; 90° short radius 305 mm; 180° LR return 914 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
12 inch ASME B16.9 Butt Weld Elbow Dimensions — all dimensions
Elbows and 180° returns (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 300 | |
| at bevel — OD | 323.8 mm | 12.75 in |
| 90° long radius — A | 457 mm | 17.99 in |
| 45° long radius — B | 190 mm | 7.48 in |
| 90° short radius — A | 305 mm | 12.01 in |
| 180° LR return — O | 914 mm | 35.98 in |
| 180° LR return — K | 619 mm | 24.37 in |
| 90° 3D — A | 914 mm | 35.98 in |
| 45° 3D — B | 378 mm | 14.88 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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12 inch ASME B16.9 Butt Weld Elbow Dimensions: common questions
What are the 12 inch ASME B16.9 Butt Weld Elbow Dimensions?
12 inch (DN 300) to ASME B16.9: OD at bevel 323.8 mm; 90° long radius 457 mm; 45° long radius 190 mm; 90° short radius 305 mm; 180° LR return 914 mm.
Does Teshi Group manufacture 12 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 12 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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