HSS20.000X0.313 Steel Round HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Outer Diameter (OD) | 20 | 508.0 mm |
| Wall Thickness (t) | 0.313 | 8.0 mm |
| Area (A) | 18 in² | 116.1 cm² |
| Weight | 65.77 lb/ft | 97.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 874 | 874 | in⁴ |
| Elastic Section Modulus (S) | 87.4 | 87.4 | in³ |
| Plastic Section Modulus (Z) | 113 | 113 | in³ |
| Radius of Gyration (r) | 6.97 | 6.97 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 1750 | 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 HSS20.000X0.313 section? 65.77 lb/ft (97.9 kg/m).
What is the section modulus of HSS20.000X0.313? Sx = 87.4 in³, Zx = 113 in³ (strong axis). Sy = 87.4 in³, Zy = 113 in³ (weak axis).
What steel grade is standard for HSS20.000X0.313? ASTM A500 Grade C (Fy = 46 ksi) or Grade B (Fy = 42 ksi). Verify with mill certificate.
What is the moment of inertia of HSS20.000X0.313? Ix = 874 in⁴ about the strong axis and Iy = 874 in⁴ about the weak axis. The radius of gyration is rx = 6.97 in and ry = 6.97 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.