WT18X426.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 21.6 | 548.6 mm |
| Flange Width (bf) | 18.2 | 46.23 cm |
| Flange Thickness (tf) | 4.53 | 115.1 mm |
| Web Thickness (tw) | 2.52 | 64.0 mm |
| Area (A) | 126 in² | 812.9 cm² |
| Weight | 426.5 lb/ft | 634.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4480 | 2300 | in⁴ |
| Elastic Section Modulus (S) | 286 | 253 | in³ |
| Plastic Section Modulus (Z) | 533 | 403 | in³ |
| Radius of Gyration (r) | 5.96 | 4.27 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 615 | in⁴ |
| Warping Constant (Cw) | 7100 | 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 WT18X426.5 tee? 426.5 lb/ft (634.7 kg/m).
What is the section modulus of WT18X426.5? Sx = 286 in³, Zx = 533 in³ (strong axis). Sy = 253 in³, Zy = 403 in³ (weak axis).
What steel grade is standard for WT18X426.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT18X426.5? Ix = 4480 in⁴ about the strong axis and Iy = 2300 in⁴ about the weak axis. The radius of gyration is rx = 5.96 in and ry = 4.27 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.