NPU profiles (UPN, DIN 1026-1) are hot-rolled U profiles with inclined header inner surfaces. It is used in applications such as chassis, frames, stair lemons and boiler pedestals.
Example
The meter weight of the NPU 200 (UPN 200) profile is 25.3 kg/m. 8 lengths of 6 m make a total of 1,214 kg.
Weight chart
| Profile | Weight (kg/m) | h (mm) | b (mm) | TW (mm) | tf (mm) | A (cm²) |
|---|---|---|---|---|---|---|
| UPN 50 | 5.6 | 50 | 38 | 5 | 7 | 7.1 |
| UPN 65 | 7.1 | 65 | 42 | 5.5 | 7.5 | 9 |
| UPN 80 | 8.6 | 80 | 45 | 6 | 8 | 11 |
| UPN 100 | 10.6 | 100 | 50 | 6 | 8.5 | 13.5 |
| UPN 120 | 13.4 | 120 | 55 | 7 | 9 | 17 |
| UPN 140 | 16 | 140 | 60 | 7 | 10 | 20.4 |
| UPN 160 | 18.8 | 160 | 65 | 7.5 | 10.5 | 24 |
| UPN 180 | 22 | 180 | 70 | 8 | 11 | 28 |
| UPN 200 | 25.3 | 200 | 75 | 8.5 | 11.5 | 32.2 |
| UPN 220 | 29.4 | 220 | 80 | 9 | 12.5 | 37.4 |
| UPN 240 | 33.2 | 240 | 85 | 9.5 | 13 | 42.3 |
| UPN 260 | 37.9 | 260 | 90 | 10 | 14 | 48.3 |
| UPN 280 | 41.8 | 280 | 95 | 10 | 15 | 53.3 |
| UPN 300 | 46.2 | 300 | 100 | 10 | 16 | 58.8 |
| UPN 320 | 59.5 | 320 | 100 | 14 | 17.5 | 75.8 |
| UPN 350 | 60.6 | 350 | 100 | 14 | 16 | 77.3 |
| UPN 380 | 63.1 | 380 | 102 | 13.5 | 16 | 80.4 |
| UPN 400 | 71.8 | 400 | 110 | 14 | 18 | 91.5 |
Values are nominal masses according to the EN 10365 size standard (steel density 7,850 kg/m³). Source: ArcelorMittal Sections and Merchant Bars 2024 catalog; each row is separately checked with cross-sectional area (G = 0.785 × A). Actual weight may differ by 2–4% ± due to rolling tolerances.
For other profiles, you can see HEA, HEB, IPE, NPU and NPI sheets; all calculation tools for box profile, sheet metal and pipe. You can consult Çiftel Kazan engineers for your boiler room and installation project.