Dimensions, weight per metre and paint area
W12x279 is a wide-flange shape weighing 415.2 kg/m (279.0 lb/ft): a 12 m length weighs 4,982.4 kg. It is 403.9 mm deep and 332.7 mm wide; the web is 38.86 mm and the flanges 62.74 mm thick.
Also listed as W310X415.
| Depth h | 403.9 mm |
|---|---|
| Flange width b | 332.7 mm |
| Web thickness tw | 38.86 mm |
| Flange thickness tf | 62.74 mm |
| Weight per metre | 415.2 kg/m |
|---|---|
| Weight per foot | 279.0 lb/ft |
| Cross-section area | 528.9 cm² |
| Paint area per metre | 2.139 m²/m |
| Paint area per tonne | 5.2 m²/t |
| 1 m | 415.2 kg |
|---|---|
| 6 m | 2,491.2 kg |
| 12 m | 4,982.4 kg |
Dimensions and mass per AISC Shapes Database v16.0, 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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