Steel Beam Sizes / Europe / IPE Sections / IPE O 400
IPE O 400 Steel Beam Dimensions and Properties
EN IPE beams · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
IPE O 400 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 | 50.87 lb/ft | 75.70 kg/m |
| Depth, d | 15.91 in | 404.00 mm |
| Flange width, bf | 7.17 in | 182.00 mm |
| tw | 0.382 in | 9.700 mm |
| tf | 0.610 in | 15.500 mm |
| Area | 14.94 in² | 9,640.00 mm² |
| Ix | 643.87 in⁴ | 268,000,000 mm⁴ |
| Iy | 37.48 in⁴ | 15,600,000 mm⁴ |
| Sx | 80.55 in³ | 1,320,000 mm³ |
| Sy | 10.50 in³ | 172,000.00 mm³ |
| Zx | 91.54 in³ | 1,500,000 mm³ |
| Zy | 16.42 in³ | 269,000.00 mm³ |
| rx | 6.57 in | 167.00 mm |
| ry | 1.59 in | 40.30 mm |
| J | 1.76 in⁴ | 733,000.00 mm⁴ |
| Cw | 2,189.65 in⁶ | 588,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus IPE O 400.
Lighter in IPE beams
IPE A 450
- Weight
- 67.2 kg/m (-11%)
- Depth
- 447.0 mm (+11%)
- Ix
- 298,000,000 mm⁴ (+11%)
Heavier in IPE beams
IPE 450
- Weight
- 77.6 kg/m (+2.5%)
- Depth
- 450.0 mm (+11%)
- Ix
- 337,000,000 mm⁴ (+26%)
Closest Iₓ in IPE beams
IPE V 400
- Weight
- 84.0 kg/m (+11%)
- Depth
- 408.0 mm (+1.0%)
- Ix
- 301,000,000 mm⁴ (+12%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology