WT12X27.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 11.8 | 299.7 mm |
| Flange Width (bf) | 7.01 | 17.81 cm |
| Flange Thickness (tf) | 0.505 | 12.8 mm |
| Web Thickness (tw) | 0.395 | 10.0 mm |
| Area (A) | 8.1 in² | 52.3 cm² |
| Weight | 27.5 lb/ft | 40.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 117 | 14.5 | in⁴ |
| Elastic Section Modulus (S) | 14.1 | 4.15 | in³ |
| Plastic Section Modulus (Z) | 25.6 | 6.65 | in³ |
| Radius of Gyration (r) | 3.8 | 1.34 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.588 | in⁴ |
| Warping Constant (Cw) | 2.93 | 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 WT12X27.5 tee? 27.5 lb/ft (40.9 kg/m).
What is the section modulus of WT12X27.5? Sx = 14.1 in³, Zx = 25.6 in³ (strong axis). Sy = 4.15 in³, Zy = 6.65 in³ (weak axis).
What steel grade is standard for WT12X27.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT12X27.5? Ix = 117 in⁴ about the strong axis and Iy = 14.5 in⁴ about the weak axis. The radius of gyration is rx = 3.8 in and ry = 1.34 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.