S4X9.5 Steel S-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 4 | 101.6 mm |
| Flange Width (bf) | 2.8 | 7.11 cm |
| Flange Thickness (tf) | 0.293 | 7.4 mm |
| Web Thickness (tw) | 0.326 | 8.3 mm |
| Area (A) | 2.79 in² | 18.0 cm² |
| Weight | 9.5 lb/ft | 14.1 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 6.76 | 0.887 | in⁴ |
| Elastic Section Modulus (S) | 3.38 | 0.635 | in³ |
| Plastic Section Modulus (Z) | 4.04 | 1.13 | in³ |
| Radius of Gyration (r) | 1.56 | 0.564 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.12 | in⁴ |
| Warping Constant (Cw) | 3.05 | in⁶ |
| Distance Between Flange Centroids (ho) | 3.71 | in |
| Effective Radius (rts) | 0.698 | in |
Design Resources
- Beam Capacity Calculator — Check S4X9.5 for your span and loads
- Column Capacity Calculator — Check S4X9.5 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 S4X9.5 beam? 9.5 lb/ft (14.1 kg/m).
What is the section modulus of S4X9.5? Sx = 3.38 in³, Zx = 4.04 in³ (strong axis). Sy = 0.635 in³, Zy = 1.13 in³ (weak axis).
What steel grade is standard for S4X9.5? ASTM A36 (Fy = 36 ksi) for S-shapes. Verify with mill certificate.
What is the moment of inertia of S4X9.5? Ix = 6.76 in⁴ about the strong axis and Iy = 0.887 in⁴ about the weak axis. The radius of gyration is rx = 1.56 in and ry = 0.564 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.