RHS 300×100×11
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 | 300 mm | 11.811 in |
| Width | 100 mm | 3.937 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 82,300,000 mm⁴ | 197.7265 in⁴ |
| Elastic modulus, Sₓ | 549,000 mm³ | 33.502 in³ |
| Plastic modulus, Zₓ | 723,000 mm³ | 44.1202 in³ |
| Radius of gyration, rₓ | 100 mm | 3.937 in |
| Distance to top fibre | 150 mm | 5.9055 in |
| Distance to bottom fibre | 150 mm | 5.9055 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 13,600,000 mm⁴ | 32.6741 in⁴ |
| Elastic modulus, S_y | 273,000 mm³ | 16.6595 in³ |
| Plastic modulus, Z_y | 320,000 mm³ | 19.5276 in³ |
| Radius of gyration, r_y | 40.8 mm | 1.6063 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 39,600,000 mm⁴ | 95.1394 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 64.3 kg/m | 43.2076 lb/ft |