HP 280 x 11 is one of the Bulb flats (Holland profiles, EN 10067) of the European library (hot-rolled bulb flats for shipbuilding): 280 mm deep, 11 mm thick, 33.5 kg/m, area 42.6 cm².
| Dimension | Value | Description |
|---|---|---|
| h | 280 mm | Overall depth |
| t | 11 mm | Thickness (leg, wall or web) |
| c | 40 mm | Bulb width beyond the web face |
| d | 42 mm | Bulb depth at the web face |
| r | 12 mm | Bulb radius |
| x | 11.7 mm | Distance from the back of the web (or heel) to the centroid, horizontal |
| y | 174.4 mm | Distance from the designated edge to the centroid, vertical |
| G | 33.5 kg/m | Mass per metre |
| A | 42.6 cm² | Cross-sectional area |
| AL | 0.637 m²/m | Painting surface per metre |
Section properties
The structural properties of HP 280 x 11 are available in the Steel Profiles app with the European library:
- Iy, Wel,y at toe and bulb, Wpl,y, iy
- Iz, Wel,z, Wpl,z, iz
- IT
The app also runs design checks to EN 1993-1-1 on HP 280 x 11, finds the closest sections in the AISC, British, Canadian and Australian standards and compares it side by side with any other section.
Full properties in Steel Profiles
The free app shows HP 280 x 11 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.