W18x258
Wide flange from AISC Shapes Database v16.0. Also designated W460X384.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 546 mm | 21.5 in |
| Flange width, b_f | 300 mm | 11.8 in |
| Web thickness, t_w | 32.5 mm | 1.28 in |
| Flange thickness, t_f | 58.4 mm | 2.3 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 2.29000e+9 mm⁴ | 5,510 in⁴ |
| Elastic modulus, Sₓ | 8,420,000 mm³ | 514 in³ |
| Plastic modulus, Zₓ | 10,000,000 mm³ | 611 in³ |
| Radius of gyration, rₓ | 217 mm | 8.53 in |
| Distance to top fibre | 273 mm | 10.75 in |
| Distance to bottom fibre | 273 mm | 10.75 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 261,000,000 mm⁴ | 628 in⁴ |
| Elastic modulus, S_y | 1,750,000 mm³ | 107 in³ |
| Plastic modulus, Z_y | 2,720,000 mm³ | 166 in³ |
| Radius of gyration, r_y | 73.2 mm | 2.88 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 42,900,000 mm⁴ | 103 in⁴ |
| Warping constant, C_w | 1.55000e+13 mm⁶ | 57,600 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 384 kg/m | 258 lb/ft |