M12X11.8 Steel Miscellaneous beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 12 | 304.8 mm |
| Flange Width (bf) | 3.07 | 7.80 cm |
| Flange Thickness (tf) | 0.225 | 5.7 mm |
| Web Thickness (tw) | 0.177 | 4.5 mm |
| Area (A) | 3.47 in² | 22.4 cm² |
| Weight | 11.8 lb/ft | 17.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 72.2 | 1.09 | in⁴ |
| Elastic Section Modulus (S) | 12 | 0.709 | in³ |
| Plastic Section Modulus (Z) | 14.3 | 1.15 | in³ |
| Radius of Gyration (r) | 4.56 | 0.559 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.05 | in⁴ |
| Warping Constant (Cw) | 37.7 | in⁶ |
| Distance Between Flange Centroids (ho) | 11.8 | in |
| Effective Radius (rts) | 0.731 | in |
Design Resources
- Beam Capacity Calculator — Check M12X11.8 for your span and loads
- Column Capacity Calculator — Check M12X11.8 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 M12X11.8 beam? 11.8 lb/ft (17.6 kg/m).
What is the section modulus of M12X11.8? Sx = 12 in³, Zx = 14.3 in³ (strong axis). Sy = 0.709 in³, Zy = 1.15 in³ (weak axis).
What steel grade is standard for M12X11.8? ASTM A36 (Fy = 36 ksi) for M-shapes. Verify with mill certificate.
What is the moment of inertia of M12X11.8? Ix = 72.2 in⁴ about the strong axis and Iy = 1.09 in⁴ about the weak axis. The radius of gyration is rx = 4.56 in and ry = 0.559 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.