HSS12.750X0.625 Steel Round HSS — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Outer Diameter (OD) | 12.8 | 325.1 mm |
| Wall Thickness (t) | 0.625 | 15.9 mm |
| Area (A) | 22.2 in² | 143.2 cm² |
| Weight | 81.01 lb/ft | 120.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 412 | 412 | in⁴ |
| Elastic Section Modulus (S) | 64.7 | 64.7 | in³ |
| Plastic Section Modulus (Z) | 86.1 | 86.1 | in³ |
| Radius of Gyration (r) | 4.31 | 4.31 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 824 | 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 HSS12.750X0.625 section? 81.01 lb/ft (120.6 kg/m).
What is the section modulus of HSS12.750X0.625? Sx = 64.7 in³, Zx = 86.1 in³ (strong axis). Sy = 64.7 in³, Zy = 86.1 in³ (weak axis).
What steel grade is standard for HSS12.750X0.625? ASTM A500 Grade C (Fy = 46 ksi) or Grade B (Fy = 42 ksi). Verify with mill certificate.
What is the moment of inertia of HSS12.750X0.625? Ix = 412 in⁴ about the strong axis and Iy = 412 in⁴ about the weak axis. The radius of gyration is rx = 4.31 in and ry = 4.31 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.