Dimensions, weight per metre and paint area
I 450x175x11x20 is an I-section weighing 91.7 kg/m: a 12 m length weighs 1,100.4 kg. It is 450 mm deep and 175 mm wide; the web is 11 mm and the flanges 20 mm thick.
| Depth h | 450 mm |
|---|---|
| Flange width b | 175 mm |
| Web thickness tw | 11 mm |
| Flange thickness tf | 20 mm |
| Weight per metre | 91.7 kg/m |
|---|---|
| Cross-section area | 116.8 cm² |
| Paint area per metre | 1.600 m²/m |
| Paint area per tonne | 17.5 m²/t |
| 1 m | 91.7 kg |
|---|---|
| 6 m | 550.2 kg |
| 12 m | 1,100.4 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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