ST6x20.4
American standard tees from AISC Shapes Database v16.0. Also designated ST155X30.35.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 152 mm | 6 in |
| Flange width, b_f | 133 mm | 5.25 in |
| Web thickness, t_w | 11.7 mm | 0.462 in |
| Flange thickness, t_f | 16.7 mm | 0.659 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 7,870,000 mm⁴ | 18.9 in⁴ |
| Elastic modulus, Sₓ | 70,000 mm³ | 4.27 in³ |
| Plastic modulus, Zₓ | 126,000 mm³ | 7.71 in³ |
| Radius of gyration, rₓ | 45.2 mm | 1.78 in |
| Distance to top fibre | 40.1 mm | 1.58 in |
| Distance to bottom fibre | 111.9 mm | 4.42 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 2,810,000 mm⁴ | 6.74 in⁴ |
| Elastic modulus, S_y | 42,100 mm³ | 2.57 in³ |
| Plastic modulus, Z_y | 72,600 mm³ | 4.43 in³ |
| Radius of gyration, r_y | 26.9 mm | 1.06 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 350,000 mm⁴ | 0.842 in⁴ |
| Warping constant, C_w | 211,000,000 mm⁶ | 0.787 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 30.4 kg/m | 20.4 lb/ft |