Dimensions, weight per metre and paint area
C12x30 is an American Standard channel weighing 44.6 kg/m (30.0 lb/ft): a 12 m length weighs 535.2 kg. It is 304.8 mm deep and 80.5 mm wide; the web is 12.95 mm and the flanges 12.73 mm thick.
Also listed as C310X45.
| Depth h | 304.8 mm |
|---|---|
| Flange width b | 80.5 mm |
| Web thickness tw | 12.95 mm |
| Flange thickness tf | 12.73 mm |
| Weight per metre | 44.6 kg/m |
|---|---|
| Weight per foot | 30.0 lb/ft |
| Cross-section area | 56.8 cm² |
| Paint area per metre | 0.932 m²/m |
| Paint area per tonne | 20.9 m²/t |
| 1 m | 44.6 kg |
|---|---|
| 6 m | 267.6 kg |
| 12 m | 535.2 kg |
Dimensions and mass per AISC Shapes Database v16.0, 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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