Steel Beam Sizes / Europe / HE Sections / HE 280 B
HE 280 B 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 B 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 | 69.21 lb/ft | 103.00 kg/m |
| Depth, d | 11.02 in | 280.00 mm |
| Flange width, bf | 11.02 in | 280.00 mm |
| tw | 0.413 in | 10.500 mm |
| tf | 0.709 in | 18.000 mm |
| Area | 20.31 in² | 13,100.00 mm² |
| Ix | 463.68 in⁴ | 193,000,000 mm⁴ |
| Iy | 158.57 in⁴ | 66,000,000 mm⁴ |
| Sx | 84.21 in³ | 1,380,000 mm³ |
| Sy | 28.74 in³ | 471,000.00 mm³ |
| Zx | 93.37 in³ | 1,530,000 mm³ |
| Zy | 43.82 in³ | 718,000.00 mm³ |
| rx | 4.76 in | 121.00 mm |
| ry | 2.79 in | 70.90 mm |
| J | 3.51 in⁴ | 1,460,000 mm⁴ |
| Cw | 4,208.00 in⁶ | 1,130,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 280 B.
Lighter in HE wide flange sections
HE 450 AA
- Weight
- 99.7 kg/m (-3.2%)
- Depth
- 425.0 mm (+52%)
- Ix
- 419,000,000 mm⁴ (+117%)
Heavier in HE wide flange sections
HE 340 A
- Weight
- 105.0 kg/m (+1.9%)
- Depth
- 330.0 mm (+18%)
- Ix
- 277,000,000 mm⁴ (+44%)
Closest Iₓ in HE wide flange sections
HE 340 AA
- Weight
- 78.9 kg/m (-23%)
- Depth
- 320.0 mm (+14%)
- Ix
- 196,000,000 mm⁴ (+1.6%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology