WT12X139.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 13.4 | 340.4 mm |
| Flange Width (bf) | 13.3 | 33.78 cm |
| Flange Thickness (tf) | 2.09 | 53.1 mm |
| Web Thickness (tw) | 1.16 | 29.5 mm |
| Area (A) | 41 in² | 264.5 cm² |
| Weight | 139.5 lb/ft | 207.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 546 | 412 | in⁴ |
| Elastic Section Modulus (S) | 53.6 | 61.9 | in³ |
| Plastic Section Modulus (Z) | 98.8 | 96.3 | in³ |
| Radius of Gyration (r) | 3.65 | 3.17 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 45.1 | in⁴ |
| Warping Constant (Cw) | 230 | 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 WT12X139.5 tee? 139.5 lb/ft (207.6 kg/m).
What is the section modulus of WT12X139.5? Sx = 53.6 in³, Zx = 98.8 in³ (strong axis). Sy = 61.9 in³, Zy = 96.3 in³ (weak axis).
What steel grade is standard for WT12X139.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT12X139.5? Ix = 546 in⁴ about the strong axis and Iy = 412 in⁴ about the weak axis. The radius of gyration is rx = 3.65 in and ry = 3.17 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.