Steel Beam Sizes / Europe / HE Sections / HE 550 B
HE 550 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 550 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 | 133.72 lb/ft | 199.00 kg/m |
| Depth, d | 21.65 in | 550.00 mm |
| Flange width, bf | 11.81 in | 300.00 mm |
| tw | 0.591 in | 15.000 mm |
| tf | 1.142 in | 29.000 mm |
| Area | 39.37 in² | 25,400.00 mm² |
| Ix | 3,291.44 in⁴ | 1,370,000,000 mm⁴ |
| Iy | 314.73 in⁴ | 131,000,000 mm⁴ |
| Sx | 303.29 in³ | 4,970,000 mm³ |
| Sy | 53.21 in³ | 872,000.00 mm³ |
| Zx | 341.12 in³ | 5,590,000 mm³ |
| Zy | 81.77 in³ | 1,340,000 mm³ |
| rx | 9.13 in | 232.00 mm |
| ry | 2.82 in | 71.70 mm |
| J | 14.66 in⁴ | 6,100,000 mm⁴ |
| Cw | 32,993.73 in⁶ | 8,860,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 550 B.
Lighter in HE wide flange sections
HE 900 AA
- Weight
- 198.0 kg/m (-0.5%)
- Depth
- 870.0 mm (+58%)
- Ix
- 3,010,000,000 mm⁴ (+120%)
Heavier in HE wide flange sections
HE 700 A
- Weight
- 204.0 kg/m (+2.5%)
- Depth
- 690.0 mm (+25%)
- Ix
- 2,150,000,000 mm⁴ (+57%)
Closest Iₓ in HE wide flange sections
HE 600 A
- Weight
- 178.0 kg/m (-11%)
- Depth
- 590.0 mm (+7.3%)
- Ix
- 1,410,000,000 mm⁴ (+2.9%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology