Steel Beam Sizes / Europe / RHS / RHS 350×150×7.1
RHS 350×150×7.1 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 350×150×7.1 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 | 36.08 lb/ft | 53.70 kg/m |
| Height | 13.78 in | 350.00 mm |
| Width | 5.91 in | 150.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 10.60 in² | 6,840.00 mm² |
| Ix | 254.67 in⁴ | 106,000,000 mm⁴ |
| Iy | 67.27 in⁴ | 28,000,000 mm⁴ |
| Sx | 36.86 in³ | 604,000.00 mm³ |
| Sy | 22.82 in³ | 374,000.00 mm³ |
| Zx | 46.13 in³ | 756,000.00 mm³ |
| Zy | 25.39 in³ | 416,000.00 mm³ |
| rx | 4.88 in | 124.00 mm |
| ry | 2.52 in | 64.00 mm |
| J | 171.06 in⁴ | 71,200,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 350×150×7.1.
Lighter in Rectangular hollow sections
RHS 300×250×6.3
- Weight
- 52.8 kg/m (-1.7%)
- Depth
- 300.0 mm (-14%)
- Ix
- 91,900,000 mm⁴ (-13%)
Heavier in Rectangular hollow sections
RHS 220×120×11
- Weight
- 53.9 kg/m (+0.4%)
- Depth
- 220.0 mm (-37%)
- Ix
- 41,400,000 mm⁴ (-61%)
Closest Iₓ in Rectangular hollow sections
RHS 300×200×8.8
- Weight
- 66.0 kg/m (+23%)
- Depth
- 300.0 mm (-14%)
- Ix
- 106,000,000 mm⁴ (0.0%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology