M12.5X11.6 Steel Miscellaneous beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 12.5 | 317.5 mm |
| Flange Width (bf) | 3.5 | 8.89 cm |
| Flange Thickness (tf) | 0.211 | 5.4 mm |
| Web Thickness (tw) | 0.155 | 3.9 mm |
| Area (A) | 3.4 in² | 21.9 cm² |
| Weight | 11.6 lb/ft | 17.3 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 80.3 | 1.51 | in⁴ |
| Elastic Section Modulus (S) | 12.8 | 0.864 | in³ |
| Plastic Section Modulus (Z) | 15 | 1.37 | in³ |
| Radius of Gyration (r) | 4.86 | 0.667 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.041 | in⁴ |
| Warping Constant (Cw) | 57.1 | in⁶ |
| Distance Between Flange Centroids (ho) | 12.3 | in |
| Effective Radius (rts) | 0.852 | in |
Design Resources
- Beam Capacity Calculator — Check M12.5X11.6 for your span and loads
- Column Capacity Calculator — Check M12.5X11.6 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 M12.5X11.6 beam? 11.6 lb/ft (17.3 kg/m).
What is the section modulus of M12.5X11.6? Sx = 12.8 in³, Zx = 15 in³ (strong axis). Sy = 0.864 in³, Zy = 1.37 in³ (weak axis).
What steel grade is standard for M12.5X11.6? ASTM A36 (Fy = 36 ksi) for M-shapes. Verify with mill certificate.
What is the moment of inertia of M12.5X11.6? Ix = 80.3 in⁴ about the strong axis and Iy = 1.51 in⁴ about the weak axis. The radius of gyration is rx = 4.86 in and ry = 0.667 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.