IS 6392 — Flange drilling — PN 10
IS 6392 Flange drilling — PN 10 — 19 sizes.
| NB | Outside dia (mm) | PCD (mm) | No. of bolts | Bolt size | Thickness (mm) |
|---|---|---|---|---|---|
| 15 | 95 | 65 | 4 | M12 | 14 |
| 20 | 105 | 75 | 4 | M12 | 16 |
| 25 | 115 | 85 | 4 | M12 | 16 |
| 32 | 140 | 100 | 4 | M16 | 16 |
| 40 | 150 | 110 | 4 | M16 | 16 |
| 50 | 165 | 125 | 4 | M16 | 18 |
| 65 | 185 | 145 | 4 | M16 | 18 |
| 80 | 200 | 160 | 8 | M16 | 20 |
| 100 | 220 | 180 | 8 | M16 | 20 |
| 125 | 250 | 210 | 8 | M16 | 22 |
| 150 | 285 | 240 | 8 | M20 | 22 |
| 175 | 315 | 270 | 8 | — | 24 |
| 200 | 340 | 295 | 8 | M20 | 24 |
| 250 | 395 | 350 | 12 | M20 | 26 |
| 300 | 445 | 400 | 12 | M20 | 26 |
| 350 | 505 | 460 | 16 | M20 | 28 |
| 400 | 565 | 515 | 16 | M24 | 32 |
| 500 | 670 | 620 | 20 | M24 | 38 |
| 600 | 780 | 725 | 20 | M27 | 42 |
- Plate flanges for welding. IS 6392 Table 11 (1.0 N/mm2) carries the note 'for nominal sizes 10 to 175 mm, use Table 17' — so 15-175 rows are Table 17 (1.6 N/mm2) values; 200-600 are Table 11.