W8x31
Wide flange from AISC Shapes Database v16.0. Also designated W200X46.1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 203 mm | 8 in |
| Flange width, b_f | 203 mm | 8 in |
| Web thickness, t_w | 7.24 mm | 0.285 in |
| Flange thickness, t_f | 11 mm | 0.435 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 45,800,000 mm⁴ | 110 in⁴ |
| Elastic modulus, Sₓ | 451,000 mm³ | 27.5 in³ |
| Plastic modulus, Zₓ | 498,000 mm³ | 30.4 in³ |
| Radius of gyration, rₓ | 88.1 mm | 3.47 in |
| Distance to top fibre | 101.5 mm | 4 in |
| Distance to bottom fibre | 101.5 mm | 4 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 15,400,000 mm⁴ | 37.1 in⁴ |
| Elastic modulus, S_y | 152,000 mm³ | 9.27 in³ |
| Plastic modulus, Z_y | 231,000 mm³ | 14.1 in³ |
| Radius of gyration, r_y | 51.3 mm | 2.02 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 223,000 mm⁴ | 0.536 in⁴ |
| Warping constant, C_w | 1.42000e+11 mm⁶ | 530 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 46.1 kg/m | 31 lb/ft |