HSS18X6X3/8 Steel Rectangular HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Height (h) | 18 | 457.2 mm |
| Width (w) | 6 | 152.4 mm |
| Wall Thickness (t) | 0.375 | 9.5 mm |
| Area (A) | 16 in² | 103.2 cm² |
| Weight | 58.1 lb/ft | 86.5 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 602 | 106 | in⁴ |
| Elastic Section Modulus (S) | 66.9 | 35.5 | in³ |
| Plastic Section Modulus (Z) | 86.4 | 39.5 | in³ |
| Radius of Gyration (r) | 6.15 | 2.58 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 302 | 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 HSS18X6X3/8 section? 58.1 lb/ft (86.5 kg/m).
What is the section modulus of HSS18X6X3/8? Sx = 66.9 in³, Zx = 86.4 in³ (strong axis). Sy = 35.5 in³, Zy = 39.5 in³ (weak axis).
What steel grade is standard for HSS18X6X3/8? ASTM A500 Grade C (Fy = 50 ksi) or Grade B (Fy = 46 ksi). Verify with mill certificate.
What is the moment of inertia of HSS18X6X3/8? Ix = 602 in⁴ about the strong axis and Iy = 106 in⁴ about the weak axis. The radius of gyration is rx = 6.15 in and ry = 2.58 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.