Steel Beam Sizes / Europe / RHS / RHS 400×150×8.8
RHS 400×150×8.8 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 400×150×8.8 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 | 48.99 lb/ft | 72.90 kg/m |
| Height | 15.75 in | 400.00 mm |
| Width | 5.91 in | 150.00 mm |
| t | 0.346 in | 8.800 mm |
| Area | 14.40 in² | 9,290.00 mm² |
| Ix | 432.45 in⁴ | 180,000,000 mm⁴ |
| Iy | 91.30 in⁴ | 38,000,000 mm⁴ |
| Sx | 54.80 in³ | 898,000.00 mm³ |
| Sy | 30.94 in³ | 507,000.00 mm³ |
| Zx | 69.57 in³ | 1,140,000 mm³ |
| Zy | 34.66 in³ | 568,000.00 mm³ |
| rx | 5.47 in | 139.00 mm |
| ry | 2.52 in | 64.00 mm |
| J | 247.46 in⁴ | 103,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 400×150×8.8.
Lighter in Rectangular hollow sections
RHS 350×250×8
- Weight
- 72.8 kg/m (-0.1%)
- Depth
- 350.0 mm (-12%)
- Ix
- 164,000,000 mm⁴ (-8.9%)
Heavier in Rectangular hollow sections
RHS 300×200×10
- Weight
- 74.5 kg/m (+2.2%)
- Depth
- 300.0 mm (-25%)
- Ix
- 118,000,000 mm⁴ (-34%)
Closest Iₓ in Rectangular hollow sections
RHS 350×250×8.8
- Weight
- 79.8 kg/m (+9.5%)
- Depth
- 350.0 mm (-12%)
- Ix
- 179,000,000 mm⁴ (-0.6%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology