Steel Beam Sizes / Europe / HE Sections / HE 650×343
HE 650×343 Dimensions, Weight and Section Properties
EN HE wide flange sections · v2026.1
HE 650×343: 680 mm depth, 309 mm flange width, 343 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
HE 650×343 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 | 230.49 lb/ft | 343.00 kg/m |
| Depth, d | 26.77 in | 680.00 mm |
| Flange width, bf | 12.17 in | 309.00 mm |
| tw | 0.984 in | 25.000 mm |
| tf | 1.811 in | 46.000 mm |
| Area | 67.89 in² | 43,800.00 mm² |
| Ix | 8,024.38 in⁴ | 3,340,000,000 mm⁴ |
| Iy | 545.37 in⁴ | 227,000,000 mm⁴ |
| Sx | 599.25 in³ | 9,820,000 mm³ |
| Sy | 89.70 in³ | 1,470,000 mm³ |
| Zx | 695.67 in³ | 11,400,000 mm³ |
| Zy | 140.35 in³ | 2,300,000 mm³ |
| rx | 10.87 in | 276.00 mm |
| ry | 2.84 in | 72.10 mm |
| J | 58.62 in⁴ | 24,400,000 mm⁴ |
| Cw | 84,532.47 in⁶ | 22,700,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus HE 650×343.
Lighter in HE wide flange sections
HE 600×337
- Weight
- 337.0 kg/m (-1.7%)
- Depth
- 632.0 mm (-7.1%)
- Ix
- 2,830,000,000 mm⁴ (-15%)
Heavier in HE wide flange sections
HE 1000 M
- Weight
- 349.0 kg/m (+1.7%)
- Depth
- 1,008.0 mm (+48%)
- Ix
- 7,220,000,000 mm⁴ (+116%)
Another Iₓ option in HE wide flange sections
HE 700 M
- Weight
- 301.0 kg/m (-12%)
- Depth
- 716.0 mm (+5.3%)
- Ix
- 3,290,000,000 mm⁴ (-1.5%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology