Steel Beam Sizes / Europe / HE Sections / HE 120 M
HE 120 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 120 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 | 35.01 lb/ft | 52.10 kg/m |
| Depth, d | 5.51 in | 140.00 mm |
| Flange width, bf | 4.96 in | 126.00 mm |
| tw | 0.492 in | 12.500 mm |
| tf | 0.827 in | 21.000 mm |
| Area | 10.29 in² | 6,640.00 mm² |
| Ix | 48.53 in⁴ | 20,200,000 mm⁴ |
| Iy | 16.89 in⁴ | 7,030,000 mm⁴ |
| Sx | 17.57 in³ | 288,000.00 mm³ |
| Sy | 6.83 in³ | 112,000.00 mm³ |
| Zx | 21.42 in³ | 351,000.00 mm³ |
| Zy | 10.50 in³ | 172,000.00 mm³ |
| rx | 2.17 in | 55.10 mm |
| ry | 1.28 in | 32.50 mm |
| J | 2.17 in⁴ | 905,000.00 mm⁴ |
| Cw | 92.35 in⁶ | 24,800,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 120 M.
Lighter in HE wide flange sections
HE 180 B
- Weight
- 51.2 kg/m (-1.7%)
- Depth
- 180.0 mm (+29%)
- Ix
- 38,300,000 mm⁴ (+90%)
Heavier in HE wide flange sections
HE 260 AA
- Weight
- 54.1 kg/m (+3.8%)
- Depth
- 244.0 mm (+74%)
- Ix
- 79,800,000 mm⁴ (+295%)
Closest Iₓ in HE wide flange sections
HE 180 AA
- Weight
- 28.7 kg/m (-45%)
- Depth
- 167.0 mm (+19%)
- Ix
- 19,700,000 mm⁴ (-2.5%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology