Dimensions, weight per metre and paint area
HEM 300 is a heavy H-section (HE M) weighing 238 kg/m: a 12 m length weighs 2,856.0 kg. It is 340 mm deep and 310 mm wide; the web is 21 mm and the flanges 39 mm thick.
| Depth h | 340 mm |
|---|---|
| Flange width b | 310 mm |
| Web thickness tw | 21 mm |
| Flange thickness tf | 39 mm |
| Weight per metre | 238 kg/m |
|---|---|
| Cross-section area | 303.2 cm² |
| Paint area per metre | 1.920 m²/m |
| Paint area per tonne | 8.1 m²/t |
| 1 m | 238 kg |
|---|---|
| 6 m | 1,428.0 kg |
| 12 m | 2,856.0 kg |
Dimensions and mass per EN 10365, 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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