HSS20X20X1 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 20 | 508.0 mm |
| Width (w) | 20 | 508.0 mm |
| Wall Thickness (t) | 1 | 25.4 mm |
| Area (A) | 68.7 in² | 443.2 cm² |
| Weight | 249.8 lb/ft | 371.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4100 | 4100 | in⁴ |
| Elastic Section Modulus (S) | 410 | 410 | in³ |
| Plastic Section Modulus (Z) | 486 | 486 | in³ |
| Radius of Gyration (r) | 7.72 | 7.72 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 6600 | 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 HSS20X20X1 section? 249.8 lb/ft (371.7 kg/m).
What is the section modulus of HSS20X20X1? Sx = 410 in³, Zx = 486 in³ (strong axis). Sy = 410 in³, Zy = 486 in³ (weak axis).
What steel grade is standard for HSS20X20X1? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS20X20X1? Ix = 4100 in⁴ about the strong axis and Iy = 4100 in⁴ about the weak axis. The radius of gyration is rx = 7.72 in and ry = 7.72 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.