HSS20X4X1/4 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 20 | 508.0 mm |
| Width (w) | 4 | 101.6 mm |
| Wall Thickness (t) | 0.25 | 6.3 mm |
| Area (A) | 10.8 in² | 69.7 cm² |
| Weight | 39.43 lb/ft | 58.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 458 | 34.3 | in⁴ |
| Elastic Section Modulus (S) | 45.8 | 17.1 | in³ |
| Plastic Section Modulus (Z) | 61.5 | 18.7 | in³ |
| Radius of Gyration (r) | 6.5 | 1.78 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 111 | 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 HSS20X4X1/4 section? 39.43 lb/ft (58.7 kg/m).
What is the section modulus of HSS20X4X1/4? Sx = 45.8 in³, Zx = 61.5 in³ (strong axis). Sy = 17.1 in³, Zy = 18.7 in³ (weak axis).
What steel grade is standard for HSS20X4X1/4? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS20X4X1/4? Ix = 458 in⁴ about the strong axis and Iy = 34.3 in⁴ about the weak axis. The radius of gyration is rx = 6.5 in and ry = 1.78 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.