ST2.5X5 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 2.5 | 63.5 mm |
| Flange Width (bf) | 3 | 7.62 cm |
| Flange Thickness (tf) | 0.326 | 8.3 mm |
| Web Thickness (tw) | 0.214 | 5.4 mm |
| Area (A) | 1.46 in² | 9.4 cm² |
| Weight | 5 lb/ft | 7.4 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 0.671 | 0.597 | in⁴ |
| Elastic Section Modulus (S) | 0.348 | 0.398 | in³ |
| Plastic Section Modulus (Z) | 0.65 | 0.686 | in³ |
| Radius of Gyration (r) | 0.677 | 0.638 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.057 | in⁴ |
| Warping Constant (Cw) | 0.01 | 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 ST2.5X5 tee? 5 lb/ft (7.4 kg/m).
What is the section modulus of ST2.5X5? Sx = 0.348 in³, Zx = 0.65 in³ (strong axis). Sy = 0.398 in³, Zy = 0.686 in³ (weak axis).
What steel grade is standard for ST2.5X5? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST2.5X5? Ix = 0.671 in⁴ about the strong axis and Iy = 0.597 in⁴ about the weak axis. The radius of gyration is rx = 0.677 in and ry = 0.638 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.