Steel Beam Sizes / Europe / RHS / RHS 450×250×11
RHS 450×250×11 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 450×250×11 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 | 77.95 lb/ft | 116.00 kg/m |
| Height | 17.72 in | 450.00 mm |
| Width | 9.84 in | 250.00 mm |
| t | 0.433 in | 11.000 mm |
| Area | 22.94 in² | 14,800.00 mm² |
| Ix | 965.81 in⁴ | 402,000,000 mm⁴ |
| Iy | 386.80 in⁴ | 161,000,000 mm⁴ |
| Sx | 109.23 in³ | 1,790,000 mm³ |
| Sy | 78.72 in³ | 1,290,000 mm³ |
| Zx | 133.03 in³ | 2,180,000 mm³ |
| Zy | 88.48 in³ | 1,450,000 mm³ |
| rx | 6.50 in | 165.00 mm |
| ry | 4.09 in | 104.00 mm |
| J | 872.11 in⁴ | 363,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 450×250×11.
Lighter in Rectangular hollow sections
RHS 300×200×16
- Weight
- 115.0 kg/m (-0.9%)
- Depth
- 300.0 mm (-33%)
- Ix
- 174,000,000 mm⁴ (-57%)
Heavier in Rectangular hollow sections
RHS 500×300×10
- Weight
- 122.0 kg/m (+5.2%)
- Depth
- 500.0 mm (+11%)
- Ix
- 538,000,000 mm⁴ (+34%)
Closest Iₓ in Rectangular hollow sections
RHS 450×150×16
- Weight
- 141.0 kg/m (+22%)
- Depth
- 450.0 mm (0.0%)
- Ix
- 406,000,000 mm⁴ (+1.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology