Dimensions, weight per metre and paint area
HN 346x174 is a narrow-flange H-section (HN series) weighing 41.4 kg/m: a 12 m length weighs 496.8 kg. It is 346 mm deep and 174 mm wide; the web is 6 mm and the flanges 9 mm thick.
| Depth h | 346 mm |
|---|---|
| Flange width b | 174 mm |
| Web thickness tw | 6 mm |
| Flange thickness tf | 9 mm |
| Weight per metre | 41.4 kg/m |
|---|---|
| Cross-section area | 52.7 cm² |
| Paint area per metre | 1.388 m²/m |
| Paint area per tonne | 33.6 m²/t |
| 1 m | 41.4 kg |
|---|---|
| 6 m | 248.4 kg |
| 12 m | 496.8 kg |
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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