WT20X165.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 20.4 | 518.2 mm |
| Flange Width (bf) | 12.2 | 30.99 cm |
| Flange Thickness (tf) | 2.13 | 54.1 mm |
| Web Thickness (tw) | 1.22 | 31.0 mm |
| Area (A) | 48.8 in² | 314.8 cm² |
| Weight | 165.5 lb/ft | 246.3 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1880 | 322 | in⁴ |
| Elastic Section Modulus (S) | 128 | 52.9 | in³ |
| Plastic Section Modulus (Z) | 231 | 85.7 | in³ |
| Radius of Gyration (r) | 6.21 | 2.57 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 52.5 | in⁴ |
| Warping Constant (Cw) | 484 | in⁶ |
Design Resources
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a WT20X165.5 tee? 165.5 lb/ft (246.3 kg/m).
What is the section modulus of WT20X165.5? Sx = 128 in³, Zx = 231 in³ (strong axis). Sy = 52.9 in³, Zy = 85.7 in³ (weak axis).
What steel grade is standard for WT20X165.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT20X165.5? Ix = 1880 in⁴ about the strong axis and Iy = 322 in⁴ about the weak axis. The radius of gyration is rx = 6.21 in and ry = 2.57 in.
Related Pages
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.