Steel Beam Sizes / Europe / RHS / RHS 90×50×3
RHS 90×50×3 Steel Beam Dimensions and Properties
EN Rectangular hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
RHS 90×50×3 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 | 4.19 lb/ft | 6.24 kg/m |
| Height | 3.54 in | 90.00 mm |
| Width | 1.97 in | 50.00 mm |
| t | 0.118 in | 3.000 mm |
| Area | 1.23 in² | 794.00 mm² |
| Ix | 2.03 in⁴ | 844,000.00 mm⁴ |
| Iy | 0.80 in⁴ | 335,000.00 mm⁴ |
| Sx | 1.15 in³ | 18,800.00 mm³ |
| Sy | 0.82 in³ | 13,400.00 mm³ |
| Zx | 1.42 in³ | 23,200.00 mm³ |
| Zy | 0.93 in³ | 15,300.00 mm³ |
| rx | 1.28 in | 32.60 mm |
| ry | 0.81 in | 20.50 mm |
| J | 1.84 in⁴ | 765,000.00 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 90×50×3.
Lighter in Rectangular hollow sections
RHS 50×30×5.6
- Weight
- 5.8 kg/m (-7.4%)
- Depth
- 50.0 mm (-44%)
- Ix
- 197,000 mm⁴ (-77%)
Heavier in Rectangular hollow sections
RHS 80×40×3.6
- Weight
- 6.3 kg/m (+0.5%)
- Depth
- 80.0 mm (-11%)
- Ix
- 628,000 mm⁴ (-26%)
Closest Iₓ in Rectangular hollow sections
RHS 80×40×5.6
- Weight
- 9.3 kg/m (+49%)
- Depth
- 80.0 mm (-11%)
- Ix
- 867,000 mm⁴ (+2.7%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology