ASME B16.9
ASTM
ASTM A234 WPB 90° 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 | 0.08 |
| 3/4" | 20 | 26.7 | 2.87 | 19 | 0.12 |
| 1" | 25 | 33.4 | 3.38 | 25 | 0.21 |
| 1-1/4" | 32 | 42.2 | 3.56 | 32 | 0.35 |
| 1-1/2" | 40 | 48.3 | 3.68 | 38 | 0.48 |
| 2" | 50 | 60.3 | 3.91 | 51 | 0.85 |
| 2-1/2" | 65 | 73 | 5.16 | 64 | 1.55 |
| 3" | 80 | 88.9 | 5.49 | 76 | 2.35 |
| 4" | 100 | 114.3 | 6.02 | 102 | 4.1 |
| 5" | 125 | 141.3 | 6.55 | 127 | 6.5 |
| 6" | 150 | 168.3 | 7.11 | 152 | 9.2 |
| 8" | 200 | 219.1 | 8.18 | 203 | 18.5 |
| 10" | 250 | 273.1 | 9.27 | 254 | 32 |
| 12" | 300 | 323.9 | 10.31 | 305 | 52 |
| 14" | 350 | 355.6 | 11.13 | 356 | 68 |
| 16" | 400 | 406.4 | 12.7 | 406 | 95 |
| 18" | 450 | 457.2 | 14.27 | 457 | 125 |
| 20" | 500 | 508 | 15.09 | 508 | 155 |
| 24" | 600 | 610 | 17.48 | 610 | 245 |
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
- Seamless or welded fittings per ASME B16.9; WPB material traceable to heat/lot
- Induction bending and 300–3,000 t hydraulic forming for large NPS
- Normalizing or stress-relief heat treatment per material grade and project spec
- End beveling and facing per ASME B16.25 / project weld prep
Inspection & release
- PMI / OES spectroscopy for positive material identification
- Mechanical testing on representative coupons (tensile, impact when required)
- UT or RT on welds per project ITP; MT/PT on critical surfaces
- Third-party inspection (SGS, BV, TÜV) and EN 10204 3.1 mill certificates on request
Engineering FAQ
WPB is the standard carbon grade for general piping. For design temperatures below about −29 °C (−20 °F), project specs often require WPC or WPL6 with verified impact tests. Always follow the piping material specification on the isometric.
Yes. Long-radius (LR) 90° elbows use A = 1.5 × NPS in inches (converted to mm in this table). Tolerances follow ASME B16.9 unless the purchase order references MSS SP-43 or a stricter project addendum.
Yes. Typical export supply includes ASME B16.25 bevel (37.5° ± 2.5°) on carbon steel; compound bevels and J-prep can be quoted from isometrics.
Weights listed are approximate single-piece masses for carbon steel LR elbows at SCH 40 wall, useful for freight and supporting estimates. Certified weights may be shown on packing lists after final dimensional inspection.
Quick RFQ
Include quantity, delivery port and required certificates. We respond with mill pricing and lead time.