ST7.5X25 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 7.5 | 190.5 mm |
| Flange Width (bf) | 5.64 | 14.33 cm |
| Flange Thickness (tf) | 0.622 | 15.8 mm |
| Web Thickness (tw) | 0.55 | 14.0 mm |
| Area (A) | 7.34 in² | 47.4 cm² |
| Weight | 25 lb/ft | 37.2 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 40.5 | 7.79 | in⁴ |
| Elastic Section Modulus (S) | 7.72 | 2.76 | in³ |
| Plastic Section Modulus (Z) | 14 | 4.99 | in³ |
| Radius of Gyration (r) | 2.35 | 1.03 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 1.05 | in⁴ |
| Warping Constant (Cw) | 2.02 | 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 ST7.5X25 tee? 25 lb/ft (37.2 kg/m).
What is the section modulus of ST7.5X25? Sx = 7.72 in³, Zx = 14 in³ (strong axis). Sy = 2.76 in³, Zy = 4.99 in³ (weak axis).
What steel grade is standard for ST7.5X25? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST7.5X25? Ix = 40.5 in⁴ about the strong axis and Iy = 7.79 in⁴ about the weak axis. The radius of gyration is rx = 2.35 in and ry = 1.03 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.