WT3X4.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 2.95 | 74.9 mm |
| Flange Width (bf) | 3.94 | 10.01 cm |
| Flange Thickness (tf) | 0.215 | 5.5 mm |
| Web Thickness (tw) | 0.17 | 4.3 mm |
| Area (A) | 1.34 in² | 8.6 cm² |
| Weight | 4.5 lb/ft | 6.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 0.95 | 1.1 | in⁴ |
| Elastic Section Modulus (S) | 0.408 | 0.557 | in³ |
| Plastic Section Modulus (Z) | 0.72 | 0.856 | in³ |
| Radius of Gyration (r) | 0.842 | 0.905 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.02 | in⁴ |
| Warping Constant (Cw) | 0.007 | 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 WT3X4.5 tee? 4.5 lb/ft (6.7 kg/m).
What is the section modulus of WT3X4.5? Sx = 0.408 in³, Zx = 0.72 in³ (strong axis). Sy = 0.557 in³, Zy = 0.856 in³ (weak axis).
What steel grade is standard for WT3X4.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT3X4.5? Ix = 0.95 in⁴ about the strong axis and Iy = 1.1 in⁴ about the weak axis. The radius of gyration is rx = 0.842 in and ry = 0.905 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.