| NPS | Flange O.D. (mm) | Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts | Hub Diameter (mm) |
|---|---|---|---|---|---|
| ½″ | 73.15 | 12.70 | 15.88 | 4 | 31.75 |
| ¾″ | 82.55 | 12.70 | 15.88 | 4 | 35.05 |
| 1″ | 95.25 | 15.88 | 19.05 | 4 | 38.10 |
| 1½″ | 114.30 | 15.88 | 19.05 | 4 | 47.75 |
| 2″ | 127.00 | 19.05 | 22.23 | 4 | 50.80 |
| 3″ | 152.40 | 19.05 | 25.40 | 4 | 63.50 |
| 4″ | 177.80 | 25.40 | 28.58 | 4 | 76.20 |
| 6″ | 228.60 | 31.75 | 31.75 | 8 | 101.60 |
| 8″ | 266.70 | 38.10 | 34.93 | 8 | 127.00 |
| 10″ | 304.80 | 44.45 | 38.10 | 8 | 152.40 |
| 12″ | 355.60 | 50.80 | 44.45 | 8 | 177.80 |
| NPS | Flange Type | Weight / Pc (kg) |
|---|---|---|
| ½″ | Socket Weld | 0.45 |
| ¾″ | Socket Weld | 0.54 |
| 1″ | Socket Weld | 0.82 |
| 1½″ | Socket Weld | 1.41 |
| 2″ | Socket Weld | 1.81 |
| 3″ | Socket Weld | 3.18 |
| 4″ | Socket Weld | 4.76 |
| 6″ | Socket Weld | 8.16 |
| 8″ | Socket Weld | 12.25 |
| 10″ | Socket Weld | 16.78 |
| 12″ | Socket Weld | 23.59 |
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.