| NPS | O.D. (mm) | O.D. (Inch) | 90° LR Elbow | 90° SR Elbow | 45° Elbow | 180° Return |
|---|---|---|---|---|---|---|
| 1/2" | 21.3 | 0.840 | 1 1/2" | – | 5/8" | 2" |
| 3/4" | 26.7 | 1.050 | 1 1/8" | – | 7/16" | 2 1/4" |
| 1" | 33.4 | 1.315 | 1 1/2" | 1" | 7/8" | 3" |
| 1 1/4" | 42.2 | 1.660 | 1 7/8" | 1 1/4" | 1" | 3 3/4" |
| 1 1/2" | 48.3 | 1.900 | 2 1/4" | 1 1/2" | 1 1/8" | 4 1/2" |
| 2" | 60.3 | 2.375 | 3" | 2" | 1 3/8" | 6" |
| 2 1/2" | 73.0 | 2.875 | 3 3/4" | 2 1/2" | 1 3/4" | 7 1/2" |
| 3" | 88.9 | 3.500 | 4 1/2" | 3" | 2" | 9" |
| 3 1/2" | 101.6 | 4.000 | 5 1/4" | 3 1/2" | 2 1/4" | 10 1/2" |
| 4" | 114.3 | 4.500 | 6" | 4" | 2 1/2" | 12" |
| 5" | 141.3 | 5.563 | 7 1/2" | 5" | 3 1/8" | 15" |
| 6" | 168.3 | 6.625 | 9" | 6" | 3 3/4" | 18" |
| 8" | 219.1 | 8.625 | 12" | 8" | 5" | 24" |
| 10" | 273.1 | 10.750 | 15" | 10" | 6 1/4" | 30" |
| 12" | 323.9 | 12.750 | 18" | 12" | 7 1/2" | 36" |
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.