HSS12X3X1/4 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 12 | 304.8 mm |
| Width (w) | 3 | 76.2 mm |
| Wall Thickness (t) | 0.25 | 6.3 mm |
| Area (A) | 6.63 in² | 42.8 cm² |
| Weight | 24.12 lb/ft | 35.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 103 | 11.1 | in⁴ |
| Elastic Section Modulus (S) | 17.2 | 7.38 | in³ |
| Plastic Section Modulus (Z) | 22.9 | 8.28 | in³ |
| Radius of Gyration (r) | 3.94 | 1.29 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 34.5 | 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 HSS12X3X1/4 section? 24.12 lb/ft (35.9 kg/m).
What is the section modulus of HSS12X3X1/4? Sx = 17.2 in³, Zx = 22.9 in³ (strong axis). Sy = 7.38 in³, Zy = 8.28 in³ (weak axis).
What steel grade is standard for HSS12X3X1/4? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS12X3X1/4? Ix = 103 in⁴ about the strong axis and Iy = 11.1 in⁴ about the weak axis. The radius of gyration is rx = 3.94 in and ry = 1.29 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.