Dimensions, weight per metre and paint area
I 300x150x11.5x22 is an I-section weighing 76.8 kg/m: a 12 m length weighs 921.6 kg. It is 300 mm deep and 150 mm wide; the web is 11.5 mm and the flanges 22 mm thick.
| Depth h | 300 mm |
|---|---|
| Flange width b | 150 mm |
| Web thickness tw | 11.5 mm |
| Flange thickness tf | 22 mm |
| Weight per metre | 76.8 kg/m |
|---|---|
| Cross-section area | 97.8 cm² |
| Paint area per metre | 1.200 m²/m |
| Paint area per tonne | 15.7 m²/t |
| 1 m | 76.8 kg |
|---|---|
| 6 m | 460.8 kg |
| 12 m | 921.6 kg |
Dimensions and mass per JIS G 3192, 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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