Steel Beam Sizes / Europe / Angles / L 300×300×31
L 300×300×31 Steel Beam Dimensions and Properties
EN Angles · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L 300×300×31 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 | 92.73 lb/ft | 138.00 kg/m |
| Width | 11.81 in | 300.00 mm |
| Height | 11.81 in | 300.00 mm |
| t | 1.220 in | 31.000 mm |
| Area | 27.13 in² | 17,500.00 mm² |
| Ix | 353.17 in⁴ | 147,000,000 mm⁴ |
| Iy | 353.17 in⁴ | 147,000,000 mm⁴ |
| Sx | 41.86 in³ | 686,000.00 mm³ |
| Sy | 41.86 in³ | 686,000.00 mm³ |
| rx | 3.61 in | 91.60 mm |
| ry | 3.61 in | 91.60 mm |
| J | 13.93 in⁴ | 5,800,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L 300×300×31.
Lighter in Angles
L 300×300×30
- Weight
- 133.0 kg/m (-3.6%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 143,000,000 mm⁴ (-2.7%)
Heavier in Angles
L 300×300×32
- Weight
- 142.0 kg/m (+2.9%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 151,000,000 mm⁴ (+2.7%)
Closest Iₓ in Angles
L 300×300×29
- Weight
- 129.0 kg/m (-6.5%)
- Depth
- 300.0 mm (0.0%)
- Ix
- 139,000,000 mm⁴ (-5.4%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology