WT20X107.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 19.5 | 495.3 mm |
| Flange Width (bf) | 15.8 | 40.13 cm |
| Flange Thickness (tf) | 1.22 | 31.0 mm |
| Web Thickness (tw) | 0.65 | 16.5 mm |
| Area (A) | 31.8 in² | 205.2 cm² |
| Weight | 107.5 lb/ft | 160.0 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1030 | 398 | in⁴ |
| Elastic Section Modulus (S) | 68 | 50.5 | in³ |
| Plastic Section Modulus (Z) | 120 | 77.8 | in³ |
| Radius of Gyration (r) | 5.71 | 3.54 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 12.4 | in⁴ |
| Warping Constant (Cw) | 101 | 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 WT20X107.5 tee? 107.5 lb/ft (160.0 kg/m).
What is the section modulus of WT20X107.5? Sx = 68 in³, Zx = 120 in³ (strong axis). Sy = 50.5 in³, Zy = 77.8 in³ (weak axis).
What steel grade is standard for WT20X107.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT20X107.5? Ix = 1030 in⁴ about the strong axis and Iy = 398 in⁴ about the weak axis. The radius of gyration is rx = 5.71 in and ry = 3.54 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.