W310×21
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 | 303 mm | 11.9291 in |
| Flange width, b_f | 101 mm | 3.9764 in |
| Web thickness, t_w | 5.1 mm | 0.200787 in |
| Flange thickness, t_f | 5.7 mm | 0.224409 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 37,000,000 mm⁴ | 88.8929 in⁴ |
| Elastic modulus, Sₓ | 244,000 mm³ | 14.8898 in³ |
| Plastic modulus, Zₓ | 287,000 mm³ | 17.5138 in³ |
| Radius of gyration, rₓ | 117 mm | 4.6063 in |
| Distance to top fibre | 151.5 mm | 5.9646 in |
| Distance to bottom fibre | 151.5 mm | 5.9646 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 983,000 mm⁴ | 2.3617 in⁴ |
| Elastic modulus, S_y | 19,500 mm³ | 1.19 in³ |
| Plastic modulus, Z_y | 31,200 mm³ | 1.9039 in³ |
| Radius of gyration, r_y | 19.1 mm | 0.751969 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 29,400 mm⁴ | 0.070634 in⁴ |
| Warping constant, C_w | 2.17000e+10 mm⁶ | 80.8086 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 21 kg/m | 14 lb/ft |