Pipe3-1/2STD Steel Pipe — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Outer Diameter (OD) | 4 | 101.6 mm |
| Wall Thickness (t) | 0.226 | 5.7 mm |
| Area (A) | 2.5 in² | 16.1 cm² |
| Weight | 9.12 lb/ft | 13.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4.52 | 4.52 | in⁴ |
| Elastic Section Modulus (S) | 2.26 | 2.26 | in³ |
| Plastic Section Modulus (Z) | 3.03 | 3.03 | in³ |
| Radius of Gyration (r) | 1.34 | 1.34 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 9.04 | 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 Pipe3-1/2STD pipe section? 9.12 lb/ft (13.6 kg/m).
What is the section modulus of Pipe3-1/2STD? Sx = 2.26 in³, Zx = 3.03 in³ (strong axis). Sy = 2.26 in³, Zy = 3.03 in³ (weak axis).
What steel grade is standard for Pipe3-1/2STD? ASTM A53 Grade B (Fy = 35 ksi) for pipe sections. Verify with mill certificate.
What is the moment of inertia of Pipe3-1/2STD? Ix = 4.52 in⁴ about the strong axis and Iy = 4.52 in⁴ about the weak axis. The radius of gyration is rx = 1.34 in and ry = 1.34 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.