WT18X326 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 20.5 | 520.7 mm |
| Flange Width (bf) | 17.6 | 44.70 cm |
| Flange Thickness (tf) | 3.54 | 89.9 mm |
| Web Thickness (tw) | 1.97 | 50.0 mm |
| Area (A) | 96.2 in² | 620.6 cm² |
| Weight | 326 lb/ft | 485.1 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 3160 | 1610 | in⁴ |
| Elastic Section Modulus (S) | 208 | 184 | in³ |
| Plastic Section Modulus (Z) | 383 | 290 | in³ |
| Radius of Gyration (r) | 5.74 | 4.1 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 295 | in⁴ |
| Warping Constant (Cw) | 3070 | 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 WT18X326 tee? 326 lb/ft (485.1 kg/m).
What is the section modulus of WT18X326? Sx = 208 in³, Zx = 383 in³ (strong axis). Sy = 184 in³, Zy = 290 in³ (weak axis).
What steel grade is standard for WT18X326? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT18X326? Ix = 3160 in⁴ about the strong axis and Iy = 1610 in⁴ about the weak axis. The radius of gyration is rx = 5.74 in and ry = 4.1 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.