Steel Beam Sizes / Europe / RHS / RHS 400×150×7.1
RHS 400×150×7.1 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 400×150×7.1 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 | 39.85 lb/ft | 59.30 kg/m |
| Height | 15.75 in | 400.00 mm |
| Width | 5.91 in | 150.00 mm |
| t | 0.280 in | 7.100 mm |
| Area | 11.70 in² | 7,550.00 mm² |
| Ix | 355.57 in⁴ | 148,000,000 mm⁴ |
| Iy | 76.16 in⁴ | 31,700,000 mm⁴ |
| Sx | 45.16 in³ | 740,000.00 mm³ |
| Sy | 25.75 in³ | 422,000.00 mm³ |
| Zx | 57.12 in³ | 936,000.00 mm³ |
| Zy | 28.50 in³ | 467,000.00 mm³ |
| rx | 5.51 in | 140.00 mm |
| ry | 2.55 in | 64.70 mm |
| J | 203.49 in⁴ | 84,700,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 400×150×7.1.
Lighter in Rectangular hollow sections
RHS 200×100×14.2
- Weight
- 58.9 kg/m (-0.7%)
- Depth
- 200.0 mm (-50%)
- Ix
- 34,200,000 mm⁴ (-77%)
Heavier in Rectangular hollow sections
RHS 300×200×8
- Weight
- 60.3 kg/m (+1.7%)
- Depth
- 300.0 mm (-25%)
- Ix
- 97,200,000 mm⁴ (-34%)
Closest Iₓ in Rectangular hollow sections
RHS 350×250×7.1
- Weight
- 64.9 kg/m (+9.4%)
- Depth
- 350.0 mm (-12%)
- Ix
- 147,000,000 mm⁴ (-0.7%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology