HSS9X3X3/8 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 9 | 228.6 mm |
| Width (w) | 3 | 76.2 mm |
| Wall Thickness (t) | 0.375 | 9.5 mm |
| Area (A) | 7.58 in² | 48.9 cm² |
| Weight | 27.48 lb/ft | 40.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 66.3 | 11.2 | in⁴ |
| Elastic Section Modulus (S) | 14.7 | 7.45 | in³ |
| Plastic Section Modulus (Z) | 19.7 | 8.8 | in³ |
| Radius of Gyration (r) | 2.96 | 1.21 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 33.1 | in⁴ |
| Warping Constant (Cw) | 0 | in⁶ |
Design Resources
- Section Properties Database — Compare with other sections
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a HSS9X3X3/8 section? 27.48 lb/ft (40.9 kg/m).
What is the section modulus of HSS9X3X3/8? Sx = 14.7 in³, Zx = 19.7 in³ (strong axis). Sy = 7.45 in³, Zy = 8.8 in³ (weak axis).
What steel grade is standard for HSS9X3X3/8? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS9X3X3/8? Ix = 66.3 in⁴ about the strong axis and Iy = 11.2 in⁴ about the weak axis. The radius of gyration is rx = 2.96 in and ry = 1.21 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.