Dimensions, weight per metre and paint area
HN 900x300 is a narrow-flange H-section (HN series) weighing 213 kg/m: a 12 m length weighs 2,556.0 kg. It is 892 mm deep and 299 mm wide; the web is 15 mm and the flanges 23 mm thick.
| Depth h | 892 mm |
|---|---|
| Flange width b | 299 mm |
| Web thickness tw | 15 mm |
| Flange thickness tf | 23 mm |
| Weight per metre | 213 kg/m |
|---|---|
| Cross-section area | 271.3 cm² |
| Paint area per metre | 2.980 m²/m |
| Paint area per tonne | 14.0 m²/t |
| 1 m | 213 kg |
|---|---|
| 6 m | 1,278.0 kg |
| 12 m | 2,556.0 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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