Dimensions, weight per metre and paint area
356x171x45 UB is a universal beam weighing 45 kg/m: a 12 m length weighs 540.0 kg. It is 351.4 mm deep and 171.1 mm wide; the web is 7 mm and the flanges 9.7 mm thick.
Also listed as UB356X171X45.
| Depth h | 351.4 mm |
|---|---|
| Flange width b | 171.1 mm |
| Web thickness tw | 7 mm |
| Flange thickness tf | 9.7 mm |
| Weight per metre | 45 kg/m |
|---|---|
| Cross-section area | 57.3 cm² |
| Paint area per metre | 1.388 m²/m |
| Paint area per tonne | 30.9 m²/t |
| 1 m | 45 kg |
|---|---|
| 6 m | 270.0 kg |
| 12 m | 540.0 kg |
Dimensions and mass per BS 4-1, from Steel Optimizer's verified section library. Area is worked out from the mass at 7,850 kg/m³. Paint area counts the outside perimeter with square corners and ignores root radii, so it is on the safe side: typically 2–5 % above catalogue surface areas.
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