HSS20X8X1 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 20 | 508.0 mm |
| Width (w) | 8 | 203.2 mm |
| Wall Thickness (t) | 1 | 25.4 mm |
| Area (A) | 46.4 in² | 299.4 cm² |
| Weight | 168.2 lb/ft | 250.3 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2060 | 472 | in⁴ |
| Elastic Section Modulus (S) | 206 | 118 | in³ |
| Plastic Section Modulus (Z) | 273 | 141 | in³ |
| Radius of Gyration (r) | 6.67 | 3.19 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 1320 | 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 HSS20X8X1 section? 168.2 lb/ft (250.3 kg/m).
What is the section modulus of HSS20X8X1? Sx = 206 in³, Zx = 273 in³ (strong axis). Sy = 118 in³, Zy = 141 in³ (weak axis).
What steel grade is standard for HSS20X8X1? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS20X8X1? Ix = 2060 in⁴ about the strong axis and Iy = 472 in⁴ about the weak axis. The radius of gyration is rx = 6.67 in and ry = 3.19 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.