Steel Beam Sizes / Europe / HE Sections / HE 550 A
HE 550 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 550 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 | 111.55 lb/ft | 166.00 kg/m |
| Depth, d | 21.26 in | 540.00 mm |
| Flange width, bf | 11.81 in | 300.00 mm |
| tw | 0.492 in | 12.500 mm |
| tf | 0.945 in | 24.000 mm |
| Area | 32.86 in² | 21,200.00 mm² |
| Ix | 2,690.81 in⁴ | 1,120,000,000 mm⁴ |
| Iy | 259.47 in⁴ | 108,000,000 mm⁴ |
| Sx | 253.25 in³ | 4,150,000 mm³ |
| Sy | 44.00 in³ | 721,000.00 mm³ |
| Zx | 281.93 in³ | 4,620,000 mm³ |
| Zy | 67.74 in³ | 1,110,000 mm³ |
| rx | 9.06 in | 230.00 mm |
| ry | 2.81 in | 71.50 mm |
| J | 8.65 in⁴ | 3,600,000 mm⁴ |
| Cw | 26,774.82 in⁶ | 7,190,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 550 A.
Lighter in HE wide flange sections
HE 240 M
- Weight
- 157.0 kg/m (-5.4%)
- Depth
- 270.0 mm (-50%)
- Ix
- 243,000,000 mm⁴ (-78%)
Heavier in HE wide flange sections
HE 450 B
- Weight
- 171.0 kg/m (+3.0%)
- Depth
- 450.0 mm (-17%)
- Ix
- 799,000,000 mm⁴ (-29%)
Closest Iₓ in HE wide flange sections
HE 650 AA
- Weight
- 138.0 kg/m (-17%)
- Depth
- 620.0 mm (+15%)
- Ix
- 1,140,000,000 mm⁴ (+1.8%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology