RHS 150×100×12.5
Rectangular hollow sections from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 150 mm | 5.9055 in |
| Width | 100 mm | 3.937 in |
| Thickness, t | 12.5 mm | 0.492126 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 14,900,000 mm⁴ | 35.7974 in⁴ |
| Elastic modulus, Sₓ | 198,000 mm³ | 12.0827 in³ |
| Plastic modulus, Zₓ | 256,000 mm³ | 15.6221 in³ |
| Radius of gyration, rₓ | 52.2 mm | 2.0551 in |
| Distance to top fibre | 75 mm | 2.9528 in |
| Distance to bottom fibre | 75 mm | 2.9528 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 7,630,000 mm⁴ | 18.3311 in⁴ |
| Elastic modulus, S_y | 153,000 mm³ | 9.3366 in³ |
| Plastic modulus, Z_y | 190,000 mm³ | 11.5945 in³ |
| Radius of gyration, r_y | 37.4 mm | 1.4724 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 16,800,000 mm⁴ | 40.3622 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 42.8 kg/m | 28.7603 lb/ft |