27×4.0 CHS
Circular hollow sections from Australian-Sections.xlsx (Sheets 1-19).
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness, t | 4 mm | 0.15748 in |
| Outside diameter | 26.9 mm | 1.0591 in |
| Inside diameter | 18.9 mm | 0.744094 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 19,400 mm⁴ | 0.046609 in⁴ |
| Elastic modulus, Sₓ | 1,442.379 mm³ | 0.088019 in³ |
| Plastic modulus, Zₓ | 2,120 mm³ | 0.12937 in³ |
| Radius of gyration, rₓ | 8.2074 mm | 0.323125 in |
| Distance to top fibre | 13.45 mm | 0.5295275 in |
| Distance to bottom fibre | 13.45 mm | 0.5295275 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 19,400 mm⁴ | 0.046609 in⁴ |
| Elastic modulus, S_y | 1,442.379 mm³ | 0.088019 in³ |
| Plastic modulus, Z_y | 2,120 mm³ | 0.12937 in³ |
| Radius of gyration, r_y | 8.2074 mm | 0.323125 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 38,900 mm⁴ | 0.093458 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 2.2608 kg/m | 1.5192 lb/ft |