WT4X17.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 4.06 | 103.1 mm |
| Flange Width (bf) | 8.02 | 20.37 cm |
| Flange Thickness (tf) | 0.495 | 12.6 mm |
| Web Thickness (tw) | 0.31 | 7.9 mm |
| Area (A) | 5.14 in² | 33.2 cm² |
| Weight | 17.5 lb/ft | 26.0 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4.82 | 21.3 | in⁴ |
| Elastic Section Modulus (S) | 1.43 | 5.31 | in³ |
| Plastic Section Modulus (Z) | 2.71 | 8.05 | in³ |
| Radius of Gyration (r) | 0.968 | 2.03 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.384 | in⁴ |
| Warping Constant (Cw) | 0.48 | 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 WT4X17.5 tee? 17.5 lb/ft (26.0 kg/m).
What is the section modulus of WT4X17.5? Sx = 1.43 in³, Zx = 2.71 in³ (strong axis). Sy = 5.31 in³, Zy = 8.05 in³ (weak axis).
What steel grade is standard for WT4X17.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT4X17.5? Ix = 4.82 in⁴ about the strong axis and Iy = 21.3 in⁴ about the weak axis. The radius of gyration is rx = 0.968 in and ry = 2.03 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.