HSS20X20X5/16 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 20 | 508.0 mm |
| Width (w) | 20 | 508.0 mm |
| Wall Thickness (t) | 0.313 | 7.9 mm |
| Area (A) | 22.7 in² | 146.5 cm² |
| Weight | 82.88 lb/ft | 123.3 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1460 | 1460 | in⁴ |
| Elastic Section Modulus (S) | 146 | 146 | in³ |
| Plastic Section Modulus (Z) | 167 | 167 | in³ |
| Radius of Gyration (r) | 8.03 | 8.03 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 2250 | 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 HSS20X20X5/16 section? 82.88 lb/ft (123.3 kg/m).
What is the section modulus of HSS20X20X5/16? Sx = 146 in³, Zx = 167 in³ (strong axis). Sy = 146 in³, Zy = 167 in³ (weak axis).
What steel grade is standard for HSS20X20X5/16? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS20X20X5/16? Ix = 1460 in⁴ about the strong axis and Iy = 1460 in⁴ about the weak axis. The radius of gyration is rx = 8.03 in and ry = 8.03 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.