| NPS | ND (mm) | Outside Diameter (mm) | Diameter of Lap (mm) | Radius of Fillet (mm) | Length F - MSS SP-43 (mm) | Length F - ANSI B16.9 (mm) |
|---|---|---|---|---|---|---|
| ½″ | 15 | 21.34 | 34.92 | 3.17 | 0.80 | 50.80 |
| ¾″ | 20 | 26.67 | 42.86 | 3.17 | 0.80 | 50.80 |
| 1″ | 25 | 33.40 | 50.80 | 3.17 | 0.80 | 50.80 |
| 1¼″ | 32 | 42.16 | 63.50 | 4.76 | 0.80 | 50.80 |
| 1½″ | 40 | 48.26 | 73.00 | 6.35 | 0.80 | 50.80 |
| 2″ | 50 | 60.32 | 92.10 | 7.93 | 0.80 | 63.50 |
| 2½″ | 65 | 73.02 | 104.80 | 7.93 | 0.80 | 63.50 |
| 3″ | 80 | 88.90 | 127.00 | 9.52 | 0.80 | 63.50 |
| 3½″ | 90 | 101.60 | 139.70 | 9.52 | 0.80 | 76.20 |
| 4″ | 100 | 114.30 | 157.20 | 11.11 | 0.80 | 76.20 |
| 5″ | 125 | 141.30 | 185.70 | 11.11 | 1.58 | 76.20 |
| 6″ | 150 | 168.27 | 215.90 | 12.70 | 1.58 | 88.90 |
| 8″ | 200 | 219.07 | 269.80 | 12.70 | 1.58 | 101.60 |
| 10″ | 250 | 273.05 | 323.80 | 12.70 | 1.58 | 127.00 |
| 12″ | 300 | 323.85 | 381.00 | 12.70 | 1.58 | 152.40 |
| 14″ | 350 | 355.60 | 412.70 | 12.70 | 1.58 | 152.40 |
| 16″ | 400 | 406.40 | 469.90 | 12.70 | 1.58 | 152.40 |
| 18″ | 450 | 457.20 | 533.40 | 12.70 | 1.58 | 152.40 |
| 20″ | 500 | 508.00 | 584.20 | 12.70 | 1.58 | 152.40 |
| 22″ | 550 | 558.80 | 641.30 | 12.70 | 1.58 | 152.40 |
| 24″ | 600 | 609.60 | 692.10 | 12.70 | 1.58 | 152.40 |
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.