S3X5.7 Steel S-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 3 | 76.2 mm |
| Flange Width (bf) | 2.33 | 5.92 cm |
| Flange Thickness (tf) | 0.26 | 6.6 mm |
| Web Thickness (tw) | 0.17 | 4.3 mm |
| Area (A) | 1.66 in² | 10.7 cm² |
| Weight | 5.7 lb/ft | 8.5 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2.5 | 0.447 | in⁴ |
| Elastic Section Modulus (S) | 1.67 | 0.383 | in³ |
| Plastic Section Modulus (Z) | 1.94 | 0.656 | in³ |
| Radius of Gyration (r) | 1.23 | 0.518 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.043 | in⁴ |
| Warping Constant (Cw) | 0.838 | in⁶ |
| Distance Between Flange Centroids (ho) | 2.74 | in |
| Effective Radius (rts) | 0.605 | in |
Design Resources
- Beam Capacity Calculator — Check S3X5.7 for your span and loads
- Column Capacity Calculator — Check S3X5.7 as a column
- 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 S3X5.7 beam? 5.7 lb/ft (8.5 kg/m).
What is the section modulus of S3X5.7? Sx = 1.67 in³, Zx = 1.94 in³ (strong axis). Sy = 0.383 in³, Zy = 0.656 in³ (weak axis).
What steel grade is standard for S3X5.7? ASTM A36 (Fy = 36 ksi) for S-shapes. Verify with mill certificate.
What is the moment of inertia of S3X5.7? Ix = 2.5 in⁴ about the strong axis and Iy = 0.447 in⁴ about the weak axis. The radius of gyration is rx = 1.23 in and ry = 0.518 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.