S8x18.4
American standard beams from AISC Shapes Database v16.0. Also designated S200X27.4.
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 | 102 mm | 4 in |
| Web thickness, t_w | 6.88 mm | 0.271 in |
| Flange thickness, t_f | 10.8 mm | 0.425 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 23,900,000 mm⁴ | 57.5 in⁴ |
| Elastic modulus, Sₓ | 236,000 mm³ | 14.4 in³ |
| Plastic modulus, Zₓ | 270,000 mm³ | 16.5 in³ |
| Radius of gyration, rₓ | 82.8 mm | 3.26 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 | 1,540,000 mm⁴ | 3.69 in⁴ |
| Elastic modulus, S_y | 30,200 mm³ | 1.84 in³ |
| Plastic modulus, Z_y | 52,100 mm³ | 3.18 in³ |
| Radius of gyration, r_y | 21 mm | 0.827 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 139,000 mm⁴ | 0.335 in⁴ |
| Warping constant, C_w | 1.42000e+10 mm⁶ | 52.9 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 27.4 kg/m | 18.4 lb/ft |