C3X4.1 Steel C-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 3 | 76.2 mm |
| Flange Width (bf) | 1.41 | 3.58 cm |
| Flange Thickness (tf) | 0.273 | 6.9 mm |
| Web Thickness (tw) | 0.17 | 4.3 mm |
| Area (A) | 1.2 in² | 7.7 cm² |
| Weight | 4.1 lb/ft | 6.1 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1.65 | 0.191 | in⁴ |
| Elastic Section Modulus (S) | 1.1 | 0.196 | in³ |
| Plastic Section Modulus (Z) | 1.32 | 0.399 | in³ |
| Radius of Gyration (r) | 1.18 | 0.398 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.027 | in⁴ |
| Warping Constant (Cw) | 0.307 | in⁶ |
| Distance Between Flange Centroids (ho) | 2.73 | in |
| Effective Radius (rts) | 0.469 | in |
Design Resources
- Beam Capacity Calculator — Check C3X4.1 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 C3X4.1 channel? 4.1 lb/ft (6.1 kg/m).
What is the section modulus of C3X4.1? Sx = 1.1 in³, Zx = 1.32 in³ (strong axis). Sy = 0.196 in³, Zy = 0.399 in³ (weak axis).
What steel grade is standard for C3X4.1? ASTM A36 (Fy = 36 ksi) for channels. Verify with mill certificate.
What is the moment of inertia of C3X4.1? Ix = 1.65 in⁴ about the strong axis and Iy = 0.191 in⁴ about the weak axis. The radius of gyration is rx = 1.18 in and ry = 0.398 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.