WT9X79 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 9.86 | 250.4 mm |
| Flange Width (bf) | 11.3 | 28.70 cm |
| Flange Thickness (tf) | 1.44 | 36.6 mm |
| Web Thickness (tw) | 0.81 | 20.6 mm |
| Area (A) | 23.2 in² | 149.7 cm² |
| Weight | 79 lb/ft | 117.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 160 | 174 | in⁴ |
| Elastic Section Modulus (S) | 20.8 | 30.7 | in³ |
| Plastic Section Modulus (Z) | 38.5 | 47.4 | in³ |
| Radius of Gyration (r) | 2.63 | 2.74 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 12.5 | in⁴ |
| Warping Constant (Cw) | 41.2 | 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 WT9X79 tee? 79 lb/ft (117.6 kg/m).
What is the section modulus of WT9X79? Sx = 20.8 in³, Zx = 38.5 in³ (strong axis). Sy = 30.7 in³, Zy = 47.4 in³ (weak axis).
What steel grade is standard for WT9X79? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT9X79? Ix = 160 in⁴ about the strong axis and Iy = 174 in⁴ about the weak axis. The radius of gyration is rx = 2.63 in and ry = 2.74 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.