| NPS | Bolt Circle (mm) | Flange O.D. (mm) | Thickness (mm) | Hub Diameter (mm) | No. Of Bolts |
|---|---|---|---|---|---|
| 1″ | 70 | 100 | 16 | 60 | 4 |
| 2″ | 120 | 150 | 18 | 95 | 4 |
| 3″ | 150 | 200 | 20 | 125 | 6 |
| 4″ | 190 | 250 | 22 | 155 | 8 |
| 6″ | 240 | 300 | 25 | 200 | 8 |
| 8″ | 300 | 400 | 28 | 250 | 12 |
| 10″ | 350 | 500 | 30 | 300 | 12 |
| 12″ | 400 | 600 | 35 | 350 | 16 |
| NPS | Class | Weight / Pc (kg) |
|---|---|---|
| 1″ | 150 | 1.09 |
| 1″ | 300 | 2.04 |
| 2″ | 150 | 2.59 |
| 2″ | 300 | 3.99 |
| 3″ | 150 | 4.76 |
| 3″ | 300 | 7.44 |
| 4″ | 150 | 5.99 |
| 4″ | 300 | 10.07 |
| 6″ | 150 | 10.66 |
| 6″ | 300 | 19.05 |
| 8″ | 150 | 15.51 |
| 8″ | 300 | 27.40 |
| 10″ | 150 | 21.32 |
| 10″ | 300 | 36.29 |
| 12″ | 150 | 26.76 |
| 12″ | 300 | 46.72 |
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.