Dimensions, weight per metre and paint area
406x140x39 UB is a universal beam weighing 39 kg/m: a 12 m length weighs 468.0 kg. It is 398 mm deep and 141.8 mm wide; the web is 6.4 mm and the flanges 8.6 mm thick.
Also listed as UB406X140X39.
| Depth h | 398 mm |
|---|---|
| Flange width b | 141.8 mm |
| Web thickness tw | 6.4 mm |
| Flange thickness tf | 8.6 mm |
| Weight per metre | 39 kg/m |
|---|---|
| Cross-section area | 49.7 cm² |
| Paint area per metre | 1.364 m²/m |
| Paint area per tonne | 35.0 m²/t |
| 1 m | 39 kg |
|---|---|
| 6 m | 234.0 kg |
| 12 m | 468.0 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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