Steel Beam Sizes / Europe / HE Sections / HE 120 A
HE 120 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 120 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 | 13.37 lb/ft | 19.90 kg/m |
| Depth, d | 4.49 in | 114.00 mm |
| Flange width, bf | 4.72 in | 120.00 mm |
| tw | 0.197 in | 5.000 mm |
| tf | 0.315 in | 8.000 mm |
| Area | 3.92 in² | 2,530.00 mm² |
| Ix | 14.56 in⁴ | 6,060,000 mm⁴ |
| Iy | 5.55 in⁴ | 2,310,000 mm⁴ |
| Sx | 6.47 in³ | 106,000.00 mm³ |
| Sy | 2.38 in³ | 39,000.00 mm³ |
| Zx | 7.32 in³ | 120,000.00 mm³ |
| Zy | 3.59 in³ | 58,800.00 mm³ |
| rx | 1.93 in | 48.90 mm |
| ry | 1.19 in | 30.20 mm |
| J | 0.15 in⁴ | 60,400.00 mm⁴ |
| Cw | 24.09 in⁶ | 6,470,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 120 A.
Lighter in HE wide flange sections
HE 140 AA
- Weight
- 18.1 kg/m (-9.0%)
- Depth
- 128.0 mm (+12%)
- Ix
- 7,200,000 mm⁴ (+19%)
Heavier in HE wide flange sections
HE 100 B
- Weight
- 20.4 kg/m (+2.5%)
- Depth
- 100.0 mm (-12%)
- Ix
- 4,500,000 mm⁴ (-26%)
Closest Iₓ in HE wide flange sections
HE 100 C
- Weight
- 30.9 kg/m (+55%)
- Depth
- 110.0 mm (-3.5%)
- Ix
- 7,590,000 mm⁴ (+25%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology