Pipe12XXS Steel Pipe — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Outer Diameter (OD) | 12.75 | 323.8 mm |
| Wall Thickness (t) | 1 | 25.4 mm |
| Area (A) | 35.4 in² | 228.4 cm² |
| Weight | 126 lb/ft | 187.5 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 625 | 625 | in⁴ |
| Elastic Section Modulus (S) | 97.6 | 97.6 | in³ |
| Plastic Section Modulus (Z) | 134 | 134 | in³ |
| Radius of Gyration (r) | 4.2 | 4.2 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 1250 | in⁴ |
| Warping Constant (Cw) | 0 | in⁶ |
Design Resources
- Section Properties Database — Compare with other sections
- Steel Pipe Reference — Full pipe dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a Pipe12XXS pipe section? 126 lb/ft (187.5 kg/m).
What is the section modulus of Pipe12XXS? Sx = 97.6 in³, Zx = 134 in³ (strong axis). Sy = 97.6 in³, Zy = 134 in³ (weak axis).
What steel grade is standard for Pipe12XXS? ASTM A53 Grade B (Fy = 35 ksi) for pipe sections. Verify with mill certificate.
What is the moment of inertia of Pipe12XXS? Ix = 625 in⁴ about the strong axis and Iy = 625 in⁴ about the weak axis. The radius of gyration is rx = 4.2 in and ry = 4.2 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.