Steel Beam Sizes / Europe / HD Sections / HD 400×551
HD 400×551 Steel Beam Dimensions and Properties
EN HD wide flange columns · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HD 400×551 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 | 370.25 lb/ft | 551.00 kg/m |
| Depth, d | 17.91 in | 455.00 mm |
| Flange width, bf | 16.46 in | 418.00 mm |
| tw | 1.654 in | 42.000 mm |
| tf | 2.661 in | 67.600 mm |
| Area | 108.66 in² | 70,100.00 mm² |
| Ix | 5,429.67 in⁴ | 2,260,000,000 mm⁴ |
| Iy | 1,982.07 in⁴ | 825,000,000 mm⁴ |
| Sx | 606.58 in³ | 9,940,000 mm³ |
| Sy | 241.04 in³ | 3,950,000 mm³ |
| Zx | 732.28 in³ | 12,000,000 mm³ |
| Zy | 369.19 in³ | 6,050,000 mm³ |
| rx | 7.09 in | 180.00 mm |
| ry | 4.29 in | 109.00 mm |
| J | 222.23 in⁴ | 92,500,000 mm⁴ |
| Cw | 115,068.43 in⁶ | 30,900,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HD 400×551.
Lighter in HD wide flange columns
HD 400×509
- Weight
- 509.0 kg/m (-7.6%)
- Depth
- 446.0 mm (-2.0%)
- Ix
- 2,040,000,000 mm⁴ (-9.7%)
Heavier in HD wide flange columns
HD 400×592
- Weight
- 592.0 kg/m (+7.4%)
- Depth
- 465.0 mm (+2.2%)
- Ix
- 2,500,000,000 mm⁴ (+11%)
Closest Iₓ in HD wide flange columns
HD 400×463
- Weight
- 463.0 kg/m (-16%)
- Depth
- 435.0 mm (-4.4%)
- Ix
- 1,800,000,000 mm⁴ (-20%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology