Steel Beam Sizes / Europe / HE Sections / HE 400 A
HE 400 A Steel Beam Dimensions and Properties
EN HE wide flange sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HE 400 A 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 | 84.00 lb/ft | 125.00 kg/m |
| Depth, d | 15.35 in | 390.00 mm |
| Flange width, bf | 11.81 in | 300.00 mm |
| tw | 0.433 in | 11.000 mm |
| tf | 0.748 in | 19.000 mm |
| Area | 24.65 in² | 15,900.00 mm² |
| Ix | 1,083.53 in⁴ | 451,000,000 mm⁴ |
| Iy | 205.65 in⁴ | 85,600,000 mm⁴ |
| Sx | 140.96 in³ | 2,310,000 mm³ |
| Sy | 34.84 in³ | 571,000.00 mm³ |
| Zx | 156.22 in³ | 2,560,000 mm³ |
| Zy | 53.27 in³ | 873,000.00 mm³ |
| rx | 6.61 in | 168.00 mm |
| ry | 2.89 in | 73.40 mm |
| J | 4.64 in⁴ | 1,930,000 mm⁴ |
| Cw | 10,948.26 in⁶ | 2,940,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 400 A.
Lighter in HE wide flange sections
HE 550 AA
- Weight
- 120.0 kg/m (-4.0%)
- Depth
- 522.0 mm (+34%)
- Ix
- 729,000,000 mm⁴ (+62%)
Heavier in HE wide flange sections
HE 320 B
- Weight
- 127.0 kg/m (+1.6%)
- Depth
- 320.0 mm (-18%)
- Ix
- 308,000,000 mm⁴ (-32%)
Closest Iₓ in HE wide flange sections
HE 360 B
- Weight
- 142.0 kg/m (+14%)
- Depth
- 360.0 mm (-7.7%)
- Ix
- 432,000,000 mm⁴ (-4.2%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology