C4X4.5 Steel C-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 4 | 101.6 mm |
| Flange Width (bf) | 1.52 | 3.86 cm |
| Flange Thickness (tf) | 0.296 | 7.5 mm |
| Web Thickness (tw) | 0.125 | 3.2 mm |
| Area (A) | 1.34 in² | 8.6 cm² |
| Weight | 4.5 lb/ft | 6.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 3.53 | 0.265 | in⁴ |
| Elastic Section Modulus (S) | 1.77 | 0.253 | in³ |
| Plastic Section Modulus (Z) | 2.05 | 0.495 | in³ |
| Radius of Gyration (r) | 1.62 | 0.445 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.031 | in⁴ |
| Warping Constant (Cw) | 0.778 | in⁶ |
| Distance Between Flange Centroids (ho) | 3.7 | in |
| Effective Radius (rts) | 0.506 | in |
Design Resources
- Beam Capacity Calculator — Check C4X4.5 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 C4X4.5 channel? 4.5 lb/ft (6.7 kg/m).
What is the section modulus of C4X4.5? Sx = 1.77 in³, Zx = 2.05 in³ (strong axis). Sy = 0.253 in³, Zy = 0.495 in³ (weak axis).
What steel grade is standard for C4X4.5? ASTM A36 (Fy = 36 ksi) for channels. Verify with mill certificate.
What is the moment of inertia of C4X4.5? Ix = 3.53 in⁴ about the strong axis and Iy = 0.265 in⁴ about the weak axis. The radius of gyration is rx = 1.62 in and ry = 0.445 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.