HSS7.000X0.312 Steel Round HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Outer Diameter (OD) | 7 | 177.8 mm |
| Wall Thickness (t) | 0.312 | 7.9 mm |
| Area (A) | 6.13 in² | 39.5 cm² |
| Weight | 22.31 lb/ft | 33.2 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 34.6 | 34.6 | in⁴ |
| Elastic Section Modulus (S) | 9.88 | 9.88 | in³ |
| Plastic Section Modulus (Z) | 13.1 | 13.1 | in³ |
| Radius of Gyration (r) | 2.37 | 2.37 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 69.1 | 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 HSS7.000X0.312 section? 22.31 lb/ft (33.2 kg/m).
What is the section modulus of HSS7.000X0.312? Sx = 9.88 in³, Zx = 13.1 in³ (strong axis). Sy = 9.88 in³, Zy = 13.1 in³ (weak axis).
What steel grade is standard for HSS7.000X0.312? ASTM A500 Grade C (Fy = 46 ksi) or Grade B (Fy = 42 ksi). Verify with mill certificate.
What is the moment of inertia of HSS7.000X0.312? Ix = 34.6 in⁴ about the strong axis and Iy = 34.6 in⁴ about the weak axis. The radius of gyration is rx = 2.37 in and ry = 2.37 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.