ST12x40
American standard tees from AISC Shapes Database v16.0. Also designated ST305X59.5.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 305 mm | 12 in |
| Flange width, b_f | 178 mm | 7 in |
| Web thickness, t_w | 12.7 mm | 0.5 in |
| Flange thickness, t_f | 22.1 mm | 0.87 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 67,400,000 mm⁴ | 162 in⁴ |
| Elastic modulus, Sₓ | 305,000 mm³ | 18.6 in³ |
| Plastic modulus, Zₓ | 551,000 mm³ | 33.6 in³ |
| Radius of gyration, rₓ | 94.5 mm | 3.72 in |
| Distance to top fibre | 83.8 mm | 3.3 in |
| Distance to bottom fibre | 221.2 mm | 8.7 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 8,740,000 mm⁴ | 21 in⁴ |
| Elastic modulus, S_y | 98,300 mm³ | 6 in³ |
| Plastic modulus, Z_y | 170,000 mm³ | 10.4 in³ |
| Radius of gyration, r_y | 34 mm | 1.34 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,020,000 mm⁴ | 2.44 in⁴ |
| Warping constant, C_w | 1.86000e+9 mm⁶ | 6.94 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 59.5 kg/m | 40 lb/ft |