IPN beams (DIN 1025-1, formerly INP) are the narrow flange I beams with 14 % tapered inner flange faces. They predate the IPE range and are still produced for replacement work, crane runways and small spans. The number is the nominal depth in millimetres.
The table lists the dimensions, mass and area of every size. Tap a designation for its drawing and detailed dimensions. All values are in millimetres, kilograms per metre and square centimetres.
Dimensions and weights
| Designation | h mm | b mm | tw mm | tf mm | r1 mm | r2 mm | G kg/m | A cm² |
|---|---|---|---|---|---|---|---|---|
| IPN 80 | 80 | 42 | 3.9 | 5.9 | 3.9 | 2.3 | 5.94 | 7.57 |
| IPN 100 | 100 | 50 | 4.5 | 6.8 | 4.5 | 2.7 | 8.34 | 10.6 |
| IPN 120 | 120 | 58 | 5.1 | 7.7 | 5.1 | 3.1 | 11.1 | 14.2 |
| IPN 140 | 140 | 66 | 5.7 | 8.6 | 5.7 | 3.4 | 14.3 | 18.2 |
| IPN 160 | 160 | 74 | 6.3 | 9.5 | 6.3 | 3.8 | 17.9 | 22.8 |
| IPN 180 | 180 | 82 | 6.9 | 10.4 | 6.9 | 4.1 | 21.9 | 27.9 |
| IPN 200 | 200 | 90 | 7.5 | 11.3 | 7.5 | 4.5 | 26.2 | 33.4 |
| IPN 220 | 220 | 98 | 8.1 | 12.2 | 8.1 | 4.9 | 31.1 | 39.5 |
| IPN 240 | 240 | 106 | 8.7 | 13.1 | 8.7 | 5.2 | 36.2 | 46.1 |
| IPN 260 | 260 | 113 | 9.4 | 14.1 | 9.4 | 5.6 | 41.9 | 53.3 |
| IPN 280 | 280 | 119 | 10.1 | 15.2 | 10.1 | 6.1 | 47.9 | 61 |
| IPN 300 | 300 | 125 | 10.8 | 16.2 | 10.8 | 6.5 | 54.2 | 69 |
| IPN 320 | 320 | 131 | 11.5 | 17.3 | 11.5 | 6.9 | 61 | 77.7 |
| IPN 340 | 340 | 137 | 12.2 | 18.3 | 12.2 | 7.3 | 68 | 86.7 |
| IPN 360 | 360 | 143 | 13 | 19.5 | 13 | 7.8 | 76.1 | 97 |
| IPN 380 | 380 | 149 | 13.7 | 20.5 | 13.7 | 8.2 | 84 | 107 |
| IPN 400 | 400 | 155 | 14.4 | 21.6 | 14.4 | 8.6 | 92.4 | 118 |
| IPN 450 | 450 | 170 | 16.2 | 24.3 | 16.2 | 9.7 | 115 | 147 |
| IPN 500 | 500 | 185 | 18 | 27 | 18 | 10.8 | 141 | 179 |
| IPN 550 | 550 | 200 | 19 | 30 | 19 | 11.9 | 166 | 212 |
| IPN 600 | 600 | 215 | 21.6 | 32.4 | 21.6 | 13 | 199 | 254 |
Full properties in Steel Profiles
The free app shows every section with its dimensions and drawing on iPhone, iPad and Mac. The European library unlocks the complete structural properties, the design checks to Eurocode 3, the Equivalent Finder across standards and the comparison of up to three sections. Favorites, weight lists and saved sections sync through iCloud.