| NPS | Bolt Circle (mm) | Flange O.D. (mm) | Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts |
|---|---|---|---|---|---|
| ½″ | 60.50 | 89.00 | 11.20 | 15.80 | 4 |
| ¾″ | 69.90 | 98.50 | 12.70 | 15.80 | 4 |
| 1″ | 79.30 | 108.00 | 14.20 | 15.80 | 4 |
| 1¼″ | 88.90 | 117.50 | 15.70 | 15.80 | 4 |
| 1½″ | 98.60 | 127.00 | 17.50 | 15.80 | 4 |
| 2″ | 120.70 | 152.50 | 19.10 | 19.10 | 4 |
| 2½″ | 139.70 | 178.00 | 22.40 | 19.10 | 4 |
| 3″ | 152.40 | 190.50 | 23.90 | 19.10 | 4 |
| 3½″ | 177.80 | 216.00 | 23.90 | 19.10 | 8 |
| 4″ | 190.50 | 228.50 | 23.90 | 19.10 | 8 |
| 5″ | 215.90 | 254.00 | 23.90 | 22.40 | 8 |
| 6″ | 241.30 | 279.50 | 25.40 | 22.40 | 8 |
| 8″ | 298.50 | 343.00 | 28.40 | 22.40 | 8 |
| 10″ | 362.00 | 406.50 | 30.20 | 25.40 | 12 |
| 12″ | 431.80 | 482.50 | 31.80 | 25.40 | 12 |
| 14″ | 476.30 | 533.50 | 35.10 | 28.50 | 12 |
| 16″ | 539.80 | 597.00 | 36.60 | 28.50 | 16 |
| 18″ | 577.90 | 635.00 | 39.60 | 31.80 | 16 |
| 20″ | 635.00 | 698.50 | 42.90 | 31.80 | 20 |
| 24″ | 749.30 | 813.00 | 47.80 | 35.10 | 20 |
| NPS | Class | Weight / Pc (kg) |
|---|---|---|
| ½″ | 150 | 0.4 |
| ¾″ | 150 | 0.7 |
| 1″ | 150 | 0.8 |
| 1¼″ | 150 | 1.2 |
| 1½″ | 150 | 1.5 |
| 2″ | 150 | 2.3 |
| 2½″ | 150 | 3.7 |
| 3″ | 150 | 4.1 |
| 3½″ | 150 | 5.1 |
| 4″ | 150 | 5.9 |
| 5″ | 150 | 7.0 |
| 6″ | 150 | 8.4 |
| 8″ | 150 | 13.0 |
| 10″ | 150 | 18.0 |
| 12″ | 150 | 29.0 |
| 14″ | 150 | 39.0 |
| 16″ | 150 | 47.0 |
| 18″ | 150 | 57.0 |
| 20″ | 150 | 76.0 |
| 24″ | 150 | 97.0 |
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.