IPN Beams
DIN 1025-1 · 21 sections
Free Reference DataIPN beams (formerly INP) are European standard I-sections with tapered flanges, specified to DIN 1025-1. Although largely superseded by IPE sections in modern design, they remain in use for replacement works and projects following older German standards.
| Designation | h (mm) | b (mm) | t_w (mm) | t_f (mm) | A (cm²) | G (kg/m) | I_y (cm⁴) | W_y (cm³) |
|---|---|---|---|---|---|---|---|---|
| IPN 80 | 80 | 42 | 3.9 | 5.9 | 7.58 | 5.95 | 77.8 | 19.5 |
| IPN 100 | 100 | 50 | 4.5 | 6.8 | 10.6 | 8.34 | 171 | 34.2 |
| IPN 120 | 120 | 58 | 5.1 | 7.7 | 14.2 | 11.1 | 328 | 54.7 |
| IPN 140 | 140 | 66 | 5.7 | 8.6 | 18.3 | 14.3 | 573 | 81.9 |
| IPN 160 | 160 | 74 | 6.3 | 9.5 | 22.8 | 17.9 | 935 | 117 |
| IPN 180 | 180 | 82 | 6.9 | 10.4 | 27.9 | 21.9 | 1450 | 161 |
| IPN 200 | 200 | 90 | 7.5 | 11.3 | 33.5 | 26.3 | 2140 | 214 |
| IPN 220 | 220 | 98 | 8.1 | 12.2 | 39.5 | 31.1 | 3060 | 278 |
| IPN 240 | 240 | 106 | 8.7 | 13.1 | 46.1 | 36.2 | 4250 | 354 |
| IPN 260 | 260 | 113 | 9.4 | 14.1 | 53.3 | 41.9 | 5740 | 442 |
| IPN 280 | 280 | 119 | 10.1 | 15.2 | 61 | 47.9 | 7590 | 542 |
| IPN 300 | 300 | 125 | 10.8 | 16.2 | 69 | 54.2 | 9800 | 653 |
| IPN 320 | 320 | 131 | 11.5 | 17.3 | 78 | 61.2 | 12510 | 782 |
| IPN 340 | 340 | 137 | 12.2 | 18.3 | 87.4 | 68.6 | 15700 | 923 |
| IPN 360 | 360 | 143 | 13 | 19.5 | 97.8 | 76.8 | 19610 | 1090 |
| IPN 380 | 380 | 149 | 13.7 | 20.5 | 109 | 85.6 | 24010 | 1260 |
| IPN 400 | 400 | 155 | 14.4 | 21.6 | 121 | 94.9 | 29210 | 1460 |
| IPN 450 | 450 | 170 | 16.2 | 24.3 | 147 | 115 | 45850 | 2040 |
| IPN 500 | 500 | 185 | 18 | 27 | 179 | 141 | 68740 | 2750 |
| IPN 550 | 550 | 200 | 19 | 30 | 213 | 167 | 99180 | 3610 |
| IPN 600 | 600 | 215 | 21.6 | 32.4 | 254 | 199 | 139000 | 4630 |