WT18X264.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 19.9 | 505.5 mm |
| Flange Width (bf) | 17.2 | 43.69 cm |
| Flange Thickness (tf) | 2.91 | 73.9 mm |
| Web Thickness (tw) | 1.61 | 40.9 mm |
| Area (A) | 77.8 in² | 501.9 cm² |
| Weight | 264.5 lb/ft | 393.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2440 | 1240 | in⁴ |
| Elastic Section Modulus (S) | 164 | 145 | in³ |
| Plastic Section Modulus (Z) | 298 | 227 | in³ |
| Radius of Gyration (r) | 5.6 | 4 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 163 | in⁴ |
| Warping Constant (Cw) | 1600 | 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 WT18X264.5 tee? 264.5 lb/ft (393.6 kg/m).
What is the section modulus of WT18X264.5? Sx = 164 in³, Zx = 298 in³ (strong axis). Sy = 145 in³, Zy = 227 in³ (weak axis).
What steel grade is standard for WT18X264.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT18X264.5? Ix = 2440 in⁴ about the strong axis and Iy = 1240 in⁴ about the weak axis. The radius of gyration is rx = 5.6 in and ry = 4 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.