| NPS | Hub Diameter at Bevel (mm) | Thickness (mm) | Flange O.D. (mm) | Raised Face Diameter (mm) | Length Through Hub (mm) | Hub Diameter at Base (mm) | Bore Diameter (mm) | Socket Depth (mm) | Fillet Radius (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 3/4″ | 26.67 | 12.70 | 98.55 | 42.86 | 52.39 | 15.88 | 15.88 | 38.10 | 2.77 |
| 1″ | 33.53 | 14.29 | 107.95 | 50.80 | 55.63 | 17.46 | 17.46 | 49.21 | 3.18 |
| 1½″ | 48.26 | 17.46 | 127.00 | 73.03 | 61.91 | 22.23 | 22.23 | 65.09 | 6.35 |
| 2″ | 60.45 | 19.05 | 152.40 | 92.08 | 63.50 | 25.40 | 25.40 | 77.79 | 7.94 |
| 2½″ | 83.82 | 22.35 | 177.80 | 114.30 | 66.68 | 31.75 | 31.75 | 109.54 | 9.53 |
| 3″ | 88.90 | 23.81 | 190.50 | 127.00 | 69.85 | 30.16 | 30.16 | 107.95 | 9.53 |
| 3½″ | 101.60 | 23.81 | 215.90 | 139.70 | 71.12 | 31.75 | 31.75 | 122.24 | 9.53 |
| 4″ | 105.41 | 23.81 | 228.60 | 152.40 | 71.12 | 31.75 | 31.75 | 123.95 | 11.11 |
| 5″ | 141.22 | 23.81 | 254.00 | 185.74 | 88.90 | 36.53 | 36.53 | 163.53 | 11.11 |
| 6″ | 142.24 | 25.40 | 279.40 | 193.68 | 92.71 | 36.53 | 36.53 | 193.68 | 11.11 |
| 8″ | 219.96 | 28.58 | 342.90 | 269.88 | 101.60 | 44.45 | 44.45 | 246.13 | 12.70 |
| 10″ | 276.35 | 30.16 | 406.40 | 323.85 | 101.60 | 49.21 | 49.21 | 304.80 | 12.70 |
| 12″ | 322.58 | 31.75 | 482.60 | 387.35 | 152.40 | 58.74 | 58.74 | 558.80 | 12.70 |
| 14″ | 355.60 | 34.93 | 533.40 | 412.75 | 127.00 | 57.15 | 57.15 | 400.05 | 12.70 |
| 16″ | 406.40 | 36.53 | 596.90 | 469.90 | 127.00 | 63.50 | 87.31 | 457.20 | 12.70 |
| 18″ | 457.20 | 39.62 | 635.00 | 571.50 | 144.78 | 82.55 | 100.01 | 558.80 | 12.70 |
| 20″ | 508.00 | 42.86 | 698.50 | 584.20 | 144.78 | 73.03 | 103.19 | 558.80 | 12.70 |
| 24″ | 609.60 | 47.63 | 812.80 | 692.15 | 152.40 | 82.55 | 111.13 | 663.58 | 12.70 |
| NPS | Size (mm) | Slip On Flange (kg) | Weld Neck Flange (kg) | Blind Flange (kg) | O.D. (mm) | Wall Thickness (mm) |
|---|---|---|---|---|---|---|
| 1″ | 25 | 0.8 | 1.0 | 0.9 | 108.0 | 14.2 |
| 1¼″ | 32 | 1.0 | 1.3 | 1.2 | 117.3 | 15.7 |
| 1½″ | 40 | 1.3 | 1.7 | 1.5 | 127.0 | 17.5 |
| 2″ | 50 | 2.1 | 2.6 | 2.4 | 152.4 | 19.1 |
| 2½″ | 65 | 3.3 | 4.1 | 3.9 | 177.8 | 22.4 |
| 3″ | 80 | 3.9 | 4.9 | 4.9 | 190.5 | 23.9 |
| 3½″ | 90 | 4.8 | 6.1 | 6.2 | 215.9 | 23.9 |
| 4″ | 100 | 5.3 | 6.8 | 7.0 | 228.6 | 23.9 |
| 5″ | 125 | 6.1 | 8.6 | 8.6 | 254.0 | 23.9 |
| 6″ | 150 | 7.5 | 10.6 | 11.3 | 279.4 | 25.4 |
| 8″ | 200 | 12.1 | 17.6 | 19.6 | 342.9 | 28.4 |
| 10″ | 250 | 16.5 | 24.0 | 28.6 | 406.4 | 30.2 |
| 12″ | 300 | 26.2 | 36.5 | 43.2 | 482.6 | 31.8 |
| 14″ | 350 | 34.6 | 48.4 | 58.1 | 533.4 | 35.1 |
| 16″ | 400 | 44.8 | 60.6 | 76.1 | 596.9 | 36.6 |
| 18″ | 450 | 48.9 | 68.3 | 93.7 | 635.0 | 39.6 |
| 20″ | 500 | 61.9 | 84.5 | 122.0 | 698.5 | 42.9 |
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.