Dimensions, weight per metre and paint area
305x127x48 UB is a universal beam weighing 48.1 kg/m: a 12 m length weighs 577.2 kg. It is 311 mm deep and 125.3 mm wide; the web is 9 mm and the flanges 14 mm thick.
Also listed as UB305X127X48.
| Depth h | 311 mm |
|---|---|
| Flange width b | 125.3 mm |
| Web thickness tw | 9 mm |
| Flange thickness tf | 14 mm |
| Weight per metre | 48.1 kg/m |
|---|---|
| Cross-section area | 61.3 cm² |
| Paint area per metre | 1.124 m²/m |
| Paint area per tonne | 23.4 m²/t |
| 1 m | 48.1 kg |
|---|---|
| 6 m | 288.6 kg |
| 12 m | 577.2 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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