Dimensions, weight per metre and paint area
406x178x67 UB is a universal beam weighing 67.1 kg/m: a 12 m length weighs 805.2 kg. It is 409.4 mm deep and 178.8 mm wide; the web is 8.8 mm and the flanges 14.3 mm thick.
Also listed as UB406X178X67.
| Depth h | 409.4 mm |
|---|---|
| Flange width b | 178.8 mm |
| Web thickness tw | 8.8 mm |
| Flange thickness tf | 14.3 mm |
| Weight per metre | 67.1 kg/m |
|---|---|
| Cross-section area | 85.5 cm² |
| Paint area per metre | 1.534 m²/m |
| Paint area per tonne | 22.9 m²/t |
| 1 m | 67.1 kg |
|---|---|
| 6 m | 402.6 kg |
| 12 m | 805.2 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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