WT7X21.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 6.83 | 173.5 mm |
| Flange Width (bf) | 8 | 20.32 cm |
| Flange Thickness (tf) | 0.53 | 13.5 mm |
| Web Thickness (tw) | 0.305 | 7.7 mm |
| Area (A) | 6.31 in² | 40.7 cm² |
| Weight | 21.5 lb/ft | 32.0 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 21.9 | 22.6 | in⁴ |
| Elastic Section Modulus (S) | 3.98 | 5.65 | in³ |
| Plastic Section Modulus (Z) | 7.05 | 8.64 | in³ |
| Radius of Gyration (r) | 1.86 | 1.89 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.522 | in⁴ |
| Warping Constant (Cw) | 0.751 | 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 WT7X21.5 tee? 21.5 lb/ft (32.0 kg/m).
What is the section modulus of WT7X21.5? Sx = 3.98 in³, Zx = 7.05 in³ (strong axis). Sy = 5.65 in³, Zy = 8.64 in³ (weak axis).
What steel grade is standard for WT7X21.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT7X21.5? Ix = 21.9 in⁴ about the strong axis and Iy = 22.6 in⁴ about the weak axis. The radius of gyration is rx = 1.86 in and ry = 1.89 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.