Steel Beam Sizes / UK / Angles / L 80×80×8
L 80×80×8 Dimensions, Weight and Section Properties
UK Angles · v2023.11
L 80×80×8: 80 mm depth, 9.63 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
L 80×80×8 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 | 6.47 lb/ft | 9.63 kg/m |
| Width | 3.15 in | 80.00 mm |
| Height | 3.15 in | 80.00 mm |
| t | 0.315 in | 8.000 mm |
| Area | 1.91 in² | 1,230.00 mm² |
| Ix | 1.73 in⁴ | 722,000.00 mm⁴ |
| Iy | 1.73 in⁴ | 722,000.00 mm⁴ |
| Sx | 0.77 in³ | 12,600.00 mm³ |
| Sy | 0.77 in³ | 12,600.00 mm³ |
| rx | 0.96 in | 24.30 mm |
| ry | 0.96 in | 24.30 mm |
| J | 0.07 in⁴ | 28,800.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus L 80×80×8.
Lighter in Angles
L 90×90×7
- Weight
- 9.6 kg/m (-0.2%)
- Depth
- 90.0 mm (+13%)
- Ix
- 926,000 mm⁴ (+28%)
Heavier in Angles
L 100×65×8
- Weight
- 9.9 kg/m (+3.2%)
- Depth
- 100.0 mm (+25%)
- Ix
- 1,270,000 mm⁴ (+76%)
Another Iₓ option in Angles
L 75×75×10
- Weight
- 11.1 kg/m (+15%)
- Depth
- 75.0 mm (-6.2%)
- Ix
- 714,000 mm⁴ (-1.1%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology