Steel Beam Sizes / Europe / HE Sections / HE 400 AA
HE 400 AA Dimensions, Weight and Section Properties
EN HE wide flange sections · v2026.1
HE 400 AA: 378 mm depth, 300 mm flange width, 92.4 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
HE 400 AA 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 | 62.09 lb/ft | 92.40 kg/m |
| Depth, d | 14.88 in | 378.00 mm |
| Flange width, bf | 11.81 in | 300.00 mm |
| tw | 0.374 in | 9.500 mm |
| tf | 0.512 in | 13.000 mm |
| Area | 18.29 in² | 11,800.00 mm² |
| Ix | 749.58 in⁴ | 312,000,000 mm⁴ |
| Iy | 140.79 in⁴ | 58,600,000 mm⁴ |
| Sx | 100.69 in³ | 1,650,000 mm³ |
| Sy | 23.86 in³ | 391,000.00 mm³ |
| Zx | 111.06 in³ | 1,820,000 mm³ |
| Zy | 36.61 in³ | 600,000.00 mm³ |
| rx | 6.42 in | 163.00 mm |
| ry | 2.78 in | 70.60 mm |
| J | 1.95 in⁴ | 813,000.00 mm⁴ |
| Cw | 7,261.60 in⁶ | 1,950,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus HE 400 AA.
Lighter in HE wide flange sections
HE 180 M
- Weight
- 88.9 kg/m (-3.8%)
- Depth
- 200.0 mm (-47%)
- Ix
- 74,800,000 mm⁴ (-76%)
Heavier in HE wide flange sections
HE 260 B
- Weight
- 93.0 kg/m (+0.6%)
- Depth
- 260.0 mm (-31%)
- Ix
- 149,000,000 mm⁴ (-52%)
Another Iₓ option in HE wide flange sections
HE 260 M
- Weight
- 172.0 kg/m (+86%)
- Depth
- 290.0 mm (-23%)
- Ix
- 313,000,000 mm⁴ (+0.3%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology