W250×18
Wide flange from CISC Structural Section Tables SST12.1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 251 mm | 9.8819 in |
| Flange width, b_f | 101 mm | 3.9764 in |
| Web thickness, t_w | 4.8 mm | 0.188976 in |
| Flange thickness, t_f | 5.3 mm | 0.208661 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 22,400,000 mm⁴ | 53.8162 in⁴ |
| Elastic modulus, Sₓ | 179,000 mm³ | 10.9233 in³ |
| Plastic modulus, Zₓ | 207,000 mm³ | 12.6319 in³ |
| Radius of gyration, rₓ | 99.3 mm | 3.9094 in |
| Distance to top fibre | 125.5 mm | 4.9409 in |
| Distance to bottom fibre | 125.5 mm | 4.9409 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 913,000 mm⁴ | 2.1935 in⁴ |
| Elastic modulus, S_y | 18,100 mm³ | 1.1045 in³ |
| Plastic modulus, Z_y | 28,600 mm³ | 1.7453 in³ |
| Radius of gyration, r_y | 20 mm | 0.787402 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 22,400 mm⁴ | 0.053816 in⁴ |
| Warping constant, C_w | 1.38000e+10 mm⁶ | 51.3898 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 18 kg/m | 12 lb/ft |