Dimensions, weight per metre and paint area
178x102x19 UB is a universal beam weighing 19 kg/m: a 12 m length weighs 228.0 kg. It is 177.8 mm deep and 101.2 mm wide; the web is 4.8 mm and the flanges 7.9 mm thick.
Also listed as UB178X102X19.
| Depth h | 177.8 mm |
|---|---|
| Flange width b | 101.2 mm |
| Web thickness tw | 4.8 mm |
| Flange thickness tf | 7.9 mm |
| Weight per metre | 19 kg/m |
|---|---|
| Cross-section area | 24.2 cm² |
| Paint area per metre | 0.761 m²/m |
| Paint area per tonne | 40.1 m²/t |
| 1 m | 19 kg |
|---|---|
| 6 m | 114.0 kg |
| 12 m | 228.0 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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