Steel Beam Sizes / UK / Angles / L 80×80×9
L 80×80×9 Dimensions, Weight and Section Properties
UK Angles · v2023.11
L 80×80×9: 80 mm depth, 10.8 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
L 80×80×9 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 7.26 lb/ft | 10.80 kg/m |
| Width | 3.15 in | 80.00 mm |
| Height | 3.15 in | 80.00 mm |
| t | 0.354 in | 9.000 mm |
| Area | 2.12 in² | 1,370.00 mm² |
| Ix | 1.92 in⁴ | 800,000.00 mm⁴ |
| Iy | 1.92 in⁴ | 800,000.00 mm⁴ |
| Sx | 0.85 in³ | 14,000.00 mm³ |
| Sy | 0.85 in³ | 14,000.00 mm³ |
| rx | 0.95 in | 24.20 mm |
| ry | 0.95 in | 24.20 mm |
| J | 0.10 in⁴ | 40,300.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus L 80×80×9.
Lighter in Angles
L 100×100×7
- Weight
- 10.7 kg/m (-0.9%)
- Depth
- 100.0 mm (+25%)
- Ix
- 1,280,000 mm⁴ (+60%)
Heavier in Angles
L 90×90×8
- Weight
- 10.9 kg/m (+0.9%)
- Depth
- 90.0 mm (+13%)
- Ix
- 1,040,000 mm⁴ (+30%)
Another Iₓ option in Angles
L 90×90×6
- Weight
- 8.3 kg/m (-23%)
- Depth
- 90.0 mm (+13%)
- Ix
- 803,000 mm⁴ (+0.4%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology