S6X12.5 Steel S-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 6 | 152.4 mm |
| Flange Width (bf) | 3.33 | 8.46 cm |
| Flange Thickness (tf) | 0.359 | 9.1 mm |
| Web Thickness (tw) | 0.232 | 5.9 mm |
| Area (A) | 3.66 in² | 23.6 cm² |
| Weight | 12.5 lb/ft | 18.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 22 | 1.8 | in⁴ |
| Elastic Section Modulus (S) | 7.34 | 1.08 | in³ |
| Plastic Section Modulus (Z) | 8.45 | 1.86 | in³ |
| Radius of Gyration (r) | 2.45 | 0.702 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.167 | in⁴ |
| Warping Constant (Cw) | 14.3 | in⁶ |
| Distance Between Flange Centroids (ho) | 5.64 | in |
| Effective Radius (rts) | 0.831 | in |
Design Resources
- Beam Capacity Calculator — Check S6X12.5 for your span and loads
- Column Capacity Calculator — Check S6X12.5 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 S6X12.5 beam? 12.5 lb/ft (18.6 kg/m).
What is the section modulus of S6X12.5? Sx = 7.34 in³, Zx = 8.45 in³ (strong axis). Sy = 1.08 in³, Zy = 1.86 in³ (weak axis).
What steel grade is standard for S6X12.5? ASTM A36 (Fy = 36 ksi) for S-shapes. Verify with mill certificate.
What is the moment of inertia of S6X12.5? Ix = 22 in⁴ about the strong axis and Iy = 1.8 in⁴ about the weak axis. The radius of gyration is rx = 2.45 in and ry = 0.702 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.