Steel Beam Sizes / UK / RHS / RHS 400×150×12.5
RHS 400×150×12.5 Dimensions, Weight and Section Properties
UK Rectangular hollow sections · v2023.11
RHS 400×150×12.5: 102 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
RHS 400×150×12.5 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 | 68.54 lb/ft | 102.00 kg/m |
| Height | 15.75 in | 400.00 mm |
| Width | 5.91 in | 150.00 mm |
| t | 0.492 in | 12.500 mm |
| Area | 20.15 in² | 13,000.00 mm² |
| Ix | 586.21 in⁴ | 244,000,000 mm⁴ |
| Iy | 121.09 in⁴ | 50,400,000 mm⁴ |
| Sx | 74.45 in³ | 1,220,000 mm³ |
| Sy | 41.01 in³ | 672,000.00 mm³ |
| Zx | 95.81 in³ | 1,570,000 mm³ |
| Zy | 47.11 in³ | 772,000.00 mm³ |
| rx | 5.39 in | 137.00 mm |
| ry | 2.46 in | 62.40 mm |
| J | 331.55 in⁴ | 138,000,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus RHS 400×150×12.5.
Lighter in Rectangular hollow sections
RHS 260×180×16
- Weight
- 100.0 kg/m (-2.0%)
- Depth
- 260.0 mm (-35%)
- Ix
- 112,000,000 mm⁴ (-54%)
Heavier in Rectangular hollow sections
RHS 300×200×14.2
- Weight
- 103.0 kg/m (+1.0%)
- Depth
- 300.0 mm (-25%)
- Ix
- 158,000,000 mm⁴ (-35%)
Another Iₓ option in Rectangular hollow sections
RHS 350×250×12.5
- Weight
- 112.0 kg/m (+9.8%)
- Depth
- 350.0 mm (-12%)
- Ix
- 244,000,000 mm⁴ (0.0%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology