ST9X35 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 9 | 228.6 mm |
| Flange Width (bf) | 6.25 | 15.88 cm |
| Flange Thickness (tf) | 0.691 | 17.6 mm |
| Web Thickness (tw) | 0.711 | 18.1 mm |
| Area (A) | 10.3 in² | 66.5 cm² |
| Weight | 35 lb/ft | 52.1 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 84.5 | 12 | in⁴ |
| Elastic Section Modulus (S) | 14 | 3.84 | in³ |
| Plastic Section Modulus (Z) | 25.1 | 7.17 | in³ |
| Radius of Gyration (r) | 2.87 | 1.08 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 2.02 | in⁴ |
| Warping Constant (Cw) | 7.03 | 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 ST9X35 tee? 35 lb/ft (52.1 kg/m).
What is the section modulus of ST9X35? Sx = 14 in³, Zx = 25.1 in³ (strong axis). Sy = 3.84 in³, Zy = 7.17 in³ (weak axis).
What steel grade is standard for ST9X35? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST9X35? Ix = 84.5 in⁴ about the strong axis and Iy = 12 in⁴ about the weak axis. The radius of gyration is rx = 2.87 in and ry = 1.08 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.