| NPS | Bolt Circle (mm) | Flange O.D. (mm) | Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts |
|---|---|---|---|---|---|
| ½″ | 60.3 | 89 | 11.2 | 15.9 | 4 |
| 1″ | 79.4 | 108 | 12.7 | 15.9 | 4 |
| 2″ | 120.7 | 152 | 15.7 | 19.1 | 4 |
| 3″ | 152.4 | 190 | 17.5 | 19.1 | 4 |
| 4″ | 190.5 | 229 | 19.0 | 19.1 | 8 |
| 6″ | 241.3 | 279 | 21.3 | 22.2 | 8 |
| 8″ | 298.5 | 343 | 23.9 | 22.2 | 8 |
| 10″ | 362.0 | 406 | 26.4 | 25.4 | 12 |
| 12″ | 432.0 | 483 | 29.2 | 25.4 | 12 |
| NPS | Flange Thickness (mm) | Socket Depth (mm) | Flange O.D. (mm) | Weight / Pc (kg) |
|---|---|---|---|---|
| ½″ | 11.2 | 8 | 89 | 1.2 |
| ¾″ | 13.5 | 10 | 98 | 1.6 |
| 1″ | 14.5 | 10 | 108 | 2.1 |
| 1½″ | 16.5 | 12 | 127 | 3.2 |
| 2″ | 19.0 | 12 | 152 | 4.8 |
| 3″ | 23.0 | 14 | 190 | 8.6 |
| 4″ | 25.4 | 14 | 229 | 12.8 |
| 6″ | 30.2 | 16 | 279 | 20.3 |
| 8″ | 34.0 | 16 | 343 | 34.2 |
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.