Steel Beam Sizes / Europe / HE Sections / HE 300 A
HE 300 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 300 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 | 59.33 lb/ft | 88.30 kg/m |
| Depth, d | 11.42 in | 290.00 mm |
| Flange width, bf | 11.81 in | 300.00 mm |
| tw | 0.335 in | 8.500 mm |
| tf | 0.551 in | 14.000 mm |
| Area | 17.36 in² | 11,200.00 mm² |
| Ix | 439.66 in⁴ | 183,000,000 mm⁴ |
| Iy | 151.60 in⁴ | 63,100,000 mm⁴ |
| Sx | 76.89 in³ | 1,260,000 mm³ |
| Sy | 25.69 in³ | 421,000.00 mm³ |
| Zx | 84.21 in³ | 1,380,000 mm³ |
| Zy | 39.12 in³ | 641,000.00 mm³ |
| rx | 5.00 in | 127.00 mm |
| ry | 2.95 in | 74.90 mm |
| J | 2.11 in⁴ | 878,000.00 mm⁴ |
| Cw | 4,468.68 in⁶ | 1,200,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HE 300 A.
Lighter in HE wide flange sections
HE 360 AA
- Weight
- 83.7 kg/m (-5.2%)
- Depth
- 339.0 mm (+17%)
- Ix
- 230,000,000 mm⁴ (+26%)
Heavier in HE wide flange sections
HE 180 M
- Weight
- 88.9 kg/m (+0.7%)
- Depth
- 200.0 mm (-31%)
- Ix
- 74,800,000 mm⁴ (-59%)
Closest Iₓ in HE wide flange sections
HE 280 B
- Weight
- 103.0 kg/m (+17%)
- Depth
- 280.0 mm (-3.4%)
- Ix
- 193,000,000 mm⁴ (+5.5%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology