W18x55
Wide flange from AISC Shapes Database v16.0. Also designated W460X82.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 460 mm | 18.1 in |
| Flange width, b_f | 191 mm | 7.53 in |
| Web thickness, t_w | 9.91 mm | 0.39 in |
| Flange thickness, t_f | 16 mm | 0.63 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 370,000,000 mm⁴ | 890 in⁴ |
| Elastic modulus, Sₓ | 1,610,000 mm³ | 98.3 in³ |
| Plastic modulus, Zₓ | 1,840,000 mm³ | 112 in³ |
| Radius of gyration, rₓ | 188 mm | 7.41 in |
| Distance to top fibre | 230 mm | 9.05 in |
| Distance to bottom fibre | 230 mm | 9.05 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 18,700,000 mm⁴ | 44.9 in⁴ |
| Elastic modulus, S_y | 195,000 mm³ | 11.9 in³ |
| Plastic modulus, Z_y | 303,000 mm³ | 18.5 in³ |
| Radius of gyration, r_y | 42.4 mm | 1.67 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 691,000 mm⁴ | 1.66 in⁴ |
| Warping constant, C_w | 9.21000e+11 mm⁶ | 3,430 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 82 kg/m | 55 lb/ft |