M318×18.5
Miscellaneous beams 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 | 318 mm | 12.5197 in |
| Flange width, b_f | 95 mm | 3.7402 in |
| Web thickness, t_w | 3.9 mm | 0.153543 in |
| Flange thickness, t_f | 5.8 mm | 0.228346 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 37,000,000 mm⁴ | 88.8929 in⁴ |
| Elastic modulus, Sₓ | 233,000 mm³ | 14.2185 in³ |
| Plastic modulus, Zₓ | 269,000 mm³ | 16.4154 in³ |
| Radius of gyration, rₓ | 126 mm | 4.9606 in |
| Distance to top fibre | 159 mm | 6.2598 in |
| Distance to bottom fibre | 159 mm | 6.2598 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 830,000 mm⁴ | 1.9941 in⁴ |
| Elastic modulus, S_y | 17,500 mm³ | 1.0679 in³ |
| Plastic modulus, Z_y | 27,300 mm³ | 1.6659 in³ |
| Radius of gyration, r_y | 18.9 mm | 0.744094 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 20,500 mm⁴ | 0.049251 in⁴ |
| Warping constant, C_w | 2.02000e+10 mm⁶ | 75.2227 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 18.5 kg/m | 12.4 lb/ft |