ASME B16.9
ASTM
ASTM A234 WPB 45° LR Elbow Dimensions & Weight Chart (ASME B16.9 SCH 40)
Carbon Steel ASTM A234 WPB · SCH 40 / STD · 1/2" to 24"
Dimensions & weight table
Reference values for layout and freight estimates. Confirm critical dimensions against the latest ASME edition and your project ITP before procurement.
| NPS | DN | OD (mm) | Wall (mm) | C / A (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1/2" | 15 | 21.3 | 2.77 | 16 | 0.09 |
| 3/4" | 20 | 26.7 | 2.87 | 19 | 0.11 |
| 1" | 25 | 33.4 | 3.38 | 25 | 0.13 |
| 1-1/4" | 32 | 42.2 | 3.56 | 32 | 0.15 |
| 1-1/2" | 40 | 48.3 | 3.68 | 38 | 0.18 |
| 2" | 50 | 60.3 | 3.91 | 35 | 0.22 |
| 2-1/2" | 65 | 73 | 5.16 | 44 | 0.27 |
| 3" | 80 | 88.9 | 5.49 | 51 | 0.32 |
| 4" | 100 | 114.3 | 6.02 | 64 | 0.39 |
| 5" | 125 | 141.3 | 6.55 | 76 | 0.48 |
| 6" | 150 | 168.3 | 7.11 | 89 | 0.57 |
| 8" | 200 | 219.1 | 8.18 | 114 | 0.74 |
| 10" | 250 | 273.1 | 9.27 | 140 | 0.92 |
| 12" | 300 | 323.9 | 10.31 | 165 | 1.09 |
| 14" | 350 | 355.6 | 11.13 | 184 | 1.27 |
| 16" | 400 | 406.4 | 12.7 | 203 | 1.44 |
| 18" | 450 | 457.2 | 14.27 | 222 | 1.62 |
| 20" | 500 | 508 | 15.09 | 241 | 1.79 |
| 24" | 600 | 610 | 17.48 | 297 | 2.14 |
Material data
Chemical composition
- C
- ≤ 0.30 %
- Mn
- 0.29 – 1.06 %
- P
- ≤ 0.050 %
- S
- ≤ 0.058 %
- Si
- ≥ 0.10 %
Mechanical properties
- Tensile strength
- ≥ 415 MPa (60 ksi)
- Yield strength
- ≥ 240 MPa (35 ksi)
- Elongation
- ≥ 30 % (in 50 mm)
Manufacturing & quality assurance
Yanshan Hengzhenyuan Pipeline — integrated forming, heat treatment, machining and NDT for export utility and EPC programs.
Production capability
- 45° LR elbows per ASME B16.9; WPB traceable heat/lot
- Hot-forming and induction bending for large NPS carbon fittings
- Heat treatment per grade; beveled ends per ASME B16.25
- Matched to SCH 40 line pipe for EPC spool packages
Inspection & release
- PMI on each heat; center-to-end (A) check against B16.9
- NDE on welds per ITP; MT/PT on critical surfaces
- Mechanical tests tied to heat number when required
- EN 10204 3.1 certificates and third-party release on request
Engineering FAQ
Per ASME B16.9, A for 45° LR elbows is shorter than 90° LR on the same NPS. Values in this table are reference layout dimensions in millimeters for spool design.
Yes. SCH 80 wall and weights differ; see our SCH 80 elbow chart or list schedule on the inquiry.
Standard export supply includes ASME B16.25 bevel for field welding unless the PO specifies socket or threaded ends.
Masses are approximate single-piece carbon steel values for freight planning. Certified weights may appear on packing lists after final inspection.
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