ST12x45
American standard tees from AISC Shapes Database v16.0. Also designated ST305X67.
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 | 181 mm | 7.13 in |
| Web thickness, t_w | 15.9 mm | 0.625 in |
| Flange thickness, t_f | 22.1 mm | 0.87 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 79,100,000 mm⁴ | 190 in⁴ |
| Elastic modulus, Sₓ | 370,000 mm³ | 22.6 in³ |
| Plastic modulus, Zₓ | 674,000 mm³ | 41.1 in³ |
| Radius of gyration, rₓ | 96.3 mm | 3.79 in |
| Distance to top fibre | 91.4 mm | 3.6 in |
| Distance to bottom fibre | 213.6 mm | 8.4 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 9,280,000 mm⁴ | 22.3 in⁴ |
| Elastic modulus, S_y | 103,000 mm³ | 6.27 in³ |
| Plastic modulus, Z_y | 184,000 mm³ | 11.2 in³ |
| Radius of gyration, r_y | 33 mm | 1.3 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,250,000 mm⁴ | 3.01 in⁴ |
| Warping constant, C_w | 3.25000e+9 mm⁶ | 12.1 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 67 kg/m | 45 lb/ft |