Steel Beam Sizes / Europe / RHS / RHS 100×50×4
RHS 100×50×4 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 100×50×4 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 | 5.90 lb/ft | 8.78 kg/m |
| Height | 3.94 in | 100.00 mm |
| Width | 1.97 in | 50.00 mm |
| t | 0.157 in | 4.000 mm |
| Area | 1.74 in² | 1,120.00 mm² |
| Ix | 3.36 in⁴ | 1,400,000 mm⁴ |
| Iy | 1.11 in⁴ | 462,000.00 mm⁴ |
| Sx | 1.70 in³ | 27,900.00 mm³ |
| Sy | 1.13 in³ | 18,500.00 mm³ |
| Zx | 2.15 in³ | 35,200.00 mm³ |
| Zy | 1.31 in³ | 21,500.00 mm³ |
| rx | 1.39 in | 35.30 mm |
| ry | 0.80 in | 20.30 mm |
| J | 2.71 in⁴ | 1,130,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 100×50×4.
Lighter in Rectangular hollow sections
RHS 100×60×3.6
- Weight
- 8.5 kg/m (-2.8%)
- Depth
- 100.0 mm (0.0%)
- Ix
- 1,450,000 mm⁴ (+3.6%)
Heavier in Rectangular hollow sections
RHS 60×40×7.1
- Weight
- 9.1 kg/m (+4.1%)
- Depth
- 60.0 mm (-40%)
- Ix
- 459,000 mm⁴ (-67%)
Closest Iₓ in Rectangular hollow sections
RHS 90×50×5.6
- Weight
- 11.1 kg/m (+26%)
- Depth
- 90.0 mm (-10%)
- Ix
- 1,380,000 mm⁴ (-1.4%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology