Steel Beam Sizes / Europe / HE Sections / HE 550 M
HE 550 M 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 M 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 | 186.81 lb/ft | 278.00 kg/m |
| Depth, d | 22.52 in | 572.00 mm |
| Flange width, bf | 12.05 in | 306.00 mm |
| tw | 0.827 in | 21.000 mm |
| tf | 1.575 in | 40.000 mm |
| Area | 54.87 in² | 35,400.00 mm² |
| Ix | 4,756.97 in⁴ | 1,980,000,000 mm⁴ |
| Iy | 461.28 in⁴ | 192,000,000 mm⁴ |
| Sx | 422.28 in³ | 6,920,000 mm³ |
| Sy | 76.28 in³ | 1,250,000 mm³ |
| Zx | 483.92 in³ | 7,930,000 mm³ |
| Zy | 118.39 in³ | 1,940,000 mm³ |
| rx | 9.29 in | 236.00 mm |
| ry | 2.89 in | 73.50 mm |
| J | 37.48 in⁴ | 15,600,000 mm⁴ |
| Cw | 50,272.61 in⁶ | 13,500,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 550 M.
Lighter in HE wide flange sections
HE 1000 A
- Weight
- 272.0 kg/m (-2.2%)
- Depth
- 990.0 mm (+73%)
- Ix
- 5,540,000,000 mm⁴ (+180%)
Heavier in HE wide flange sections
HE 600 M
- Weight
- 285.0 kg/m (+2.5%)
- Depth
- 620.0 mm (+8.4%)
- Ix
- 2,370,000,000 mm⁴ (+20%)
Closest Iₓ in HE wide flange sections
HE 800 AA
- Weight
- 172.0 kg/m (-38%)
- Depth
- 770.0 mm (+35%)
- Ix
- 2,090,000,000 mm⁴ (+5.6%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology