C3X6 Steel C-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 3 | 76.2 mm |
| Flange Width (bf) | 1.6 | 4.06 cm |
| Flange Thickness (tf) | 0.273 | 6.9 mm |
| Web Thickness (tw) | 0.356 | 9.0 mm |
| Area (A) | 1.76 in² | 11.4 cm² |
| Weight | 6 lb/ft | 8.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2.07 | 0.3 | in⁴ |
| Elastic Section Modulus (S) | 1.38 | 0.263 | in³ |
| Plastic Section Modulus (Z) | 1.74 | 0.543 | in³ |
| Radius of Gyration (r) | 1.09 | 0.413 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.072 | in⁴ |
| Warping Constant (Cw) | 0.462 | in⁶ |
| Distance Between Flange Centroids (ho) | 2.73 | in |
| Effective Radius (rts) | 0.519 | in |
Design Resources
- Beam Capacity Calculator — Check C3X6 for your span and loads
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a C3X6 channel? 6 lb/ft (8.9 kg/m).
What is the section modulus of C3X6? Sx = 1.38 in³, Zx = 1.74 in³ (strong axis). Sy = 0.263 in³, Zy = 0.543 in³ (weak axis).
What steel grade is standard for C3X6? ASTM A36 (Fy = 36 ksi) for channels. Verify with mill certificate.
What is the moment of inertia of C3X6? Ix = 2.07 in⁴ about the strong axis and Iy = 0.3 in⁴ about the weak axis. The radius of gyration is rx = 1.09 in and ry = 0.413 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.