Dimensions, weight per metre and paint area
686x254x152 UB is a universal beam weighing 152 kg/m: a 12 m length weighs 1,824.0 kg. It is 687.5 mm deep and 254.5 mm wide; the web is 13.2 mm and the flanges 21 mm thick.
Also listed as UB686X254X152.
| Depth h | 687.5 mm |
|---|---|
| Flange width b | 254.5 mm |
| Web thickness tw | 13.2 mm |
| Flange thickness tf | 21 mm |
| Weight per metre | 152 kg/m |
|---|---|
| Cross-section area | 193.6 cm² |
| Paint area per metre | 2.393 m²/m |
| Paint area per tonne | 15.8 m²/t |
| 1 m | 152 kg |
|---|---|
| 6 m | 912.0 kg |
| 12 m | 1,824.0 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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