Steel Beam Sizes / Europe / HE Sections / HE 280 A
HE 280 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 280 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 | 51.34 lb/ft | 76.40 kg/m |
| Depth, d | 10.63 in | 270.00 mm |
| Flange width, bf | 11.02 in | 280.00 mm |
| tw | 0.315 in | 8.000 mm |
| tf | 0.512 in | 13.000 mm |
| Area | 15.08 in² | 9,730.00 mm² |
| Ix | 329.14 in⁴ | 137,000,000 mm⁴ |
| Iy | 114.36 in⁴ | 47,600,000 mm⁴ |
| Sx | 61.63 in³ | 1,010,000 mm³ |
| Sy | 20.75 in³ | 340,000.00 mm³ |
| Zx | 67.74 in³ | 1,110,000 mm³ |
| Zy | 31.61 in³ | 518,000.00 mm³ |
| rx | 4.69 in | 119.00 mm |
| ry | 2.76 in | 70.00 mm |
| J | 1.53 in⁴ | 635,000.00 mm⁴ |
| Cw | 2,923.26 in⁶ | 785,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 280 A.
Lighter in HE wide flange sections
HE 160 M
- Weight
- 76.2 kg/m (-0.3%)
- Depth
- 180.0 mm (-33%)
- Ix
- 51,000,000 mm⁴ (-63%)
Heavier in HE wide flange sections
HE 340 AA
- Weight
- 78.9 kg/m (+3.3%)
- Depth
- 320.0 mm (+19%)
- Ix
- 196,000,000 mm⁴ (+43%)
Closest Iₓ in HE wide flange sections
HE 300 AA
- Weight
- 69.8 kg/m (-8.6%)
- Depth
- 283.0 mm (+4.8%)
- Ix
- 138,000,000 mm⁴ (+0.7%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology