C8X11.5 Steel C-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 8 | 203.2 mm |
| Flange Width (bf) | 2.26 | 5.74 cm |
| Flange Thickness (tf) | 0.39 | 9.9 mm |
| Web Thickness (tw) | 0.22 | 5.6 mm |
| Area (A) | 3.37 in² | 21.7 cm² |
| Weight | 11.5 lb/ft | 17.1 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 32.5 | 1.31 | in⁴ |
| Elastic Section Modulus (S) | 8.14 | 0.775 | in³ |
| Plastic Section Modulus (Z) | 9.63 | 1.57 | in³ |
| Radius of Gyration (r) | 3.11 | 0.623 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.13 | in⁴ |
| Warping Constant (Cw) | 16.5 | in⁶ |
| Distance Between Flange Centroids (ho) | 7.61 | in |
| Effective Radius (rts) | 0.756 | in |
Design Resources
- Beam Capacity Calculator — Check C8X11.5 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 C8X11.5 channel? 11.5 lb/ft (17.1 kg/m).
What is the section modulus of C8X11.5? Sx = 8.14 in³, Zx = 9.63 in³ (strong axis). Sy = 0.775 in³, Zy = 1.57 in³ (weak axis).
What steel grade is standard for C8X11.5? ASTM A36 (Fy = 36 ksi) for channels. Verify with mill certificate.
What is the moment of inertia of C8X11.5? Ix = 32.5 in⁴ about the strong axis and Iy = 1.31 in⁴ about the weak axis. The radius of gyration is rx = 3.11 in and ry = 0.623 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.