| NPS | Bolt Circle (mm) | Flange O.D. (mm) | Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts |
|---|---|---|---|---|---|
| ½″ | 57.15 | 88.90 | 7.62 | 15.88 | 4 |
| 1″ | 69.85 | 107.95 | 7.62 | 15.88 | 4 |
| 2″ | 101.60 | 152.40 | 10.16 | 19.05 | 4 |
| 4″ | 152.40 | 228.60 | 12.70 | 22.23 | 8 |
| 6″ | 190.50 | 279.40 | 14.22 | 22.23 | 8 |
| 8″ | 228.60 | 342.90 | 15.75 | 22.23 | 8 |
| 10″ | 266.70 | 406.40 | 19.05 | 25.40 | 8 |
| 12″ | 304.80 | 457.20 | 20.57 | 25.40 | 8 |
| NPS | Class | Weight / Pc (kg) |
|---|---|---|
| ½″ | 150 | 0.40 |
| ¾″ | 150 | 0.70 |
| 1″ | 150 | 0.80 |
| 1¼″ | 150 | 1.20 |
| 1½″ | 150 | 1.50 |
| 2″ | 150 | 2.30 |
| 2½″ | 150 | 3.70 |
| 3″ | 150 | 4.10 |
| 3½″ | 150 | 5.10 |
| 4″ | 150 | 5.90 |
| 5″ | 150 | 7.00 |
| 6″ | 150 | 8.40 |
| 8″ | 150 | 13.00 |
| 10″ | 150 | 18.00 |
| 12″ | 150 | 29.00 |
| 14″ | 150 | 39.00 |
| 16″ | 150 | 47.00 |
| 18″ | 150 | 57.00 |
| 20″ | 150 | 76.00 |
| 24″ | 150 | 97.00 |
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.