180 UB 18
Universal beams from Australian-Sections.xlsx (Sheets 1-19).
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 175 mm | 6.8898 in |
| Flange width, b_f | 90 mm | 3.5433 in |
| Web thickness, t_w | 5 mm | 0.19685 in |
| Flange thickness, t_f | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 12,100,000 mm⁴ | 29.0704 in⁴ |
| Elastic modulus, Sₓ | 138,285.714 mm³ | 8.4387 in³ |
| Plastic modulus, Zₓ | 157,000 mm³ | 9.5807 in³ |
| Radius of gyration, rₓ | 72.5319 mm | 2.8556 in |
| Distance to top fibre | 87.5 mm | 3.4449 in |
| Distance to bottom fibre | 87.5 mm | 3.4449 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 975,000 mm⁴ | 2.3424 in⁴ |
| Elastic modulus, S_y | 21,666.667 mm³ | 1.3222 in³ |
| Plastic modulus, Z_y | 33,700 mm³ | 2.0565 in³ |
| Radius of gyration, r_y | 20.5891 mm | 0.810596 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 45,000 mm⁴ | 0.108113 in⁴ |
| Warping constant, C_w | 6.83000e+9 mm⁶ | 25.4342 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 18 kg/m | 12.0954 lb/ft |