ST5X17.5 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 5 | 127.0 mm |
| Flange Width (bf) | 4.94 | 12.55 cm |
| Flange Thickness (tf) | 0.491 | 12.5 mm |
| Web Thickness (tw) | 0.594 | 15.1 mm |
| Area (A) | 5.14 in² | 33.2 cm² |
| Weight | 17.5 lb/ft | 26.0 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 12.5 | 4.15 | in⁴ |
| Elastic Section Modulus (S) | 3.62 | 1.68 | in³ |
| Plastic Section Modulus (Z) | 6.58 | 3.1 | in³ |
| Radius of Gyration (r) | 1.56 | 0.899 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.633 | in⁴ |
| Warping Constant (Cw) | 0.725 | 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 ST5X17.5 tee? 17.5 lb/ft (26.0 kg/m).
What is the section modulus of ST5X17.5? Sx = 3.62 in³, Zx = 6.58 in³ (strong axis). Sy = 1.68 in³, Zy = 3.1 in³ (weak axis).
What steel grade is standard for ST5X17.5? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST5X17.5? Ix = 12.5 in⁴ about the strong axis and Iy = 4.15 in⁴ about the weak axis. The radius of gyration is rx = 1.56 in and ry = 0.899 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.