Steel Beam Sizes / Europe / RHS / RHS 350×250×7.1
RHS 350×250×7.1 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 350×250×7.1 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 | 43.61 lb/ft | 64.90 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 9.84 in | 250.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 12.80 in² | 8,260.00 mm² |
| Ix | 353.17 in⁴ | 147,000,000 mm⁴ |
| Iy | 211.42 in⁴ | 88,000,000 mm⁴ |
| Sx | 51.44 in³ | 843,000.00 mm³ |
| Sy | 42.96 in³ | 704,000.00 mm³ |
| Zx | 60.96 in³ | 999,000.00 mm³ |
| Zy | 48.45 in³ | 794,000.00 mm³ |
| rx | 5.28 in | 134.00 mm |
| ry | 4.06 in | 103.00 mm |
| J | 408.43 in⁴ | 170,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×250×7.1.
Lighter in Rectangular hollow sections
RHS 250×150×11
- Weight
- 64.3 kg/m (-0.9%)
- Depth
- 250.0 mm (-29%)
- Ix
- 66,700,000 mm⁴ (-55%)
Heavier in Rectangular hollow sections
RHS 260×180×10
- Weight
- 65.1 kg/m (+0.3%)
- Depth
- 260.0 mm (-26%)
- Ix
- 77,400,000 mm⁴ (-47%)
Closest Iₓ in Rectangular hollow sections
RHS 400×150×7.1
- Weight
- 59.3 kg/m (-8.6%)
- Depth
- 400.0 mm (+14%)
- Ix
- 148,000,000 mm⁴ (+0.7%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology