Short Radius Elbows and Short Radius Return / U Bend are manufactured according to ASME B16.9 dimensional requirements for butt-weld piping systems.
| NPS | Outside Diameter at Bevel (mm) | Center-to-End A (mm) |
|---|---|---|
| 1" | 33.4 | 25 |
| 1¼" | 42.2 | 32 |
| 1½" | 48.3 | 38 |
| 2" | 60.3 | 51 |
| 2½" | 73.0 | 64 |
| 3" | 88.9 | 76 |
| 3½" | 101.6 | 89 |
| 4" | 114.3 | 102 |
| 5" | 141.3 | 127 |
| 6" | 168.3 | 152 |
| 8" | 219.1 | 203 |
| 10" | 273.0 | 254 |
| 12" | 323.8 | 305 |
| 14" | 355.6 | 356 |
| 16" | 406.4 | 406 |
| 18" | 457.0 | 457 |
| 20" | 508.0 | 508 |
| 22" | 559.0 | 559 |
| 24" | 610.0 | 610 |
| NPS | Outside Diameter at Bevel (mm) | Center-to-Center O (mm) | Back-to-Face K (mm) |
|---|---|---|---|
| 1" | 33.4 | 51 | 41 |
| 1¼" | 42.2 | 64 | 52 |
| 1½" | 48.3 | 76 | 62 |
| 2" | 60.3 | 102 | 81 |
| 2½" | 73.0 | 127 | 100 |
| 3" | 88.9 | 152 | 121 |
| 3½" | 101.6 | 178 | 140 |
| 4" | 114.3 | 203 | 159 |
| 5" | 141.3 | 254 | 197 |
| 6" | 168.3 | 305 | 237 |
| 8" | 219.1 | 406 | 313 |
| 10" | 273.0 | 508 | 391 |
| 12" | 323.8 | 610 | 467 |
| 14" | 355.6 | 711 | 533 |
| 16" | 406.4 | 813 | 610 |
| 18" | 457.0 | 914 | 686 |
| 20" | 508.0 | 1016 | 762 |
| 22" | 559.0 | 1118 | 838 |
| 24" | 610.0 | 1219 | 914 |
| NPS | OD (inch) | ID (inch) | Wall Thickness (inch) | Center-to-Center O (inch) | Back-to-Face K (inch) |
|---|---|---|---|---|---|
| ½" | 0.84 | 0.622 | 0.109 | 3.00 | 1.88 |
| ¾" | 1.05 | 0.824 | 0.113 | 2.25 | 1.69 |
| 1" | 1.31 | 1.049 | 0.133 | 3.00 | 2.19 |
| 1¼" | 1.66 | 1.380 | 0.140 | 3.75 | 2.75 |
| 1½" | 1.90 | 1.610 | 0.145 | 4.50 | 3.25 |
| 2" | 2.38 | 2.067 | 0.154 | 6.00 | 4.19 |
| 2½" | 2.88 | 2.469 | 0.203 | 7.50 | 5.19 |
| 3" | 3.50 | 3.068 | 0.216 | 9.00 | 6.25 |
| 3½" | 4.00 | 3.548 | 0.226 | 10.50 | 7.25 |
| 4" | 4.50 | 4.026 | 0.237 | 12.00 | 8.25 |
| 5" | 5.56 | 5.047 | 0.258 | 15.00 | 10.31 |
| 6" | 6.63 | 6.065 | 0.280 | 18.00 | 12.31 |
| 8" | 8.63 | 7.981 | 0.322 | 24.00 | 16.31 |
| 10" | 10.75 | 10.020 | 0.365 | 30.00 | 20.38 |
| 12" | 12.75 | 12.000 | 0.375 | 36.00 | 24.38 |
| 14" | 14.00 | 13.250 | 0.375 | 42.00 | 28.00 |
| 16" | 16.00 | 15.250 | 0.375 | 48.00 | 32.00 |
| 18" | 18.00 | 17.250 | 0.375 | 54.00 | 36.00 |
| 20" | 20.00 | 19.250 | 0.375 | 60.00 | 40.00 |
| 22" | 22.00 | 21.250 | 0.375 | 66.00 | 44.00 |
| 24" | 24.00 | 23.250 | 0.375 | 72.00 | 48.00 |
| NPS | Schedule | Approx. Weight (kg) |
|---|---|---|
| 1" | STD | 0.23 |
| 1¼" | STD | 0.36 |
| 1½" | STD | 0.51 |
| 2" | STD | 0.91 |
| 2½" | STD | 1.93 |
| 3" | STD | 2.72 |
| 3½" | STD | 4.08 |
| 4" | STD | 5.67 |
| 5" | STD | 8.62 |
| 6" | STD | 15.88 |
| 8" | STD | 30.84 |
| 10" | STD | 52.16 |
| 12" | STD | 70.31 |
| 14" | STD | 95.25 |
| 16" | STD | 117.93 |
| 18" | STD | 149.69 |
| 20" | STD | 185.97 |
| 24" | STD | 267.62 |
| NPS Range | OD at Bevel | Wall Thickness | Elbow Centre-to-End | 180° Return O | Back-to-Face K |
|---|---|---|---|---|---|
| ½" to 2½" | +1.5 / -0.8 mm | Not less than 87.5% nominal | ±1.5 mm | ±6.4 mm | ±6.4 mm |
| 3" to 4" | ±1.5 mm | ±1.5 mm | ±1.5 mm | ±6.4 mm | ±6.4 mm |
| 5" to 8" | +2.3 / -1.5 mm | ±1.5 mm | ±1.5 mm | ±6.4 mm | ±6.4 mm |
| 10" to 18" | +4.1 / -3.0 mm | ±2.3 mm | ±2.3 mm | ±6.4 mm | ±6.4 mm |
| 20" to 24" | +6.4 / -4.8 mm | ±2.3 mm | ±2.3 mm | ±6.4 mm | ±6.4 mm |
Each flange follows a rigorous 8-step forging and quality-control process to ensure conformance with ASTM A182 and ASME standards.
Prime 304 stainless steel billet sourced and certified.
Heat to 1100°C – 1250°C for optimal forgeability.
Shape billet into flange geometry under controlled pressure.
Solution anneal at 1040°C – 1120°C, then quench.
CNC machining, drilling, and surface finishing.
Tensile, hardness, PMI, visual and impact tests performed.