W8x21
Wide flange from AISC Shapes Database v16.0. Also designated W200X31.3.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 210 mm | 8.28 in |
| Flange width, b_f | 134 mm | 5.27 in |
| Web thickness, t_w | 6.35 mm | 0.25 in |
| Flange thickness, t_f | 10.2 mm | 0.4 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 31,300,000 mm⁴ | 75.3 in⁴ |
| Elastic modulus, Sₓ | 298,000 mm³ | 18.2 in³ |
| Plastic modulus, Zₓ | 334,000 mm³ | 20.4 in³ |
| Radius of gyration, rₓ | 88.6 mm | 3.49 in |
| Distance to top fibre | 105 mm | 4.14 in |
| Distance to bottom fibre | 105 mm | 4.14 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 4,070,000 mm⁴ | 9.77 in⁴ |
| Elastic modulus, S_y | 60,800 mm³ | 3.71 in³ |
| Plastic modulus, Z_y | 93,200 mm³ | 5.69 in³ |
| Radius of gyration, r_y | 32 mm | 1.26 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 117,000 mm⁴ | 0.282 in⁴ |
| Warping constant, C_w | 4.08000e+10 mm⁶ | 152 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 31.3 kg/m | 21 lb/ft |