M4X6 Steel Miscellaneous beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 3.8 | 96.5 mm |
| Flange Width (bf) | 3.8 | 9.65 cm |
| Flange Thickness (tf) | 0.16 | 4.1 mm |
| Web Thickness (tw) | 0.13 | 3.3 mm |
| Area (A) | 1.75 in² | 11.3 cm² |
| Weight | 6 lb/ft | 8.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 4.72 | 1.47 | in⁴ |
| Elastic Section Modulus (S) | 2.48 | 0.771 | in³ |
| Plastic Section Modulus (Z) | 2.74 | 1.18 | in³ |
| Radius of Gyration (r) | 1.64 | 0.915 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.018 | in⁴ |
| Warping Constant (Cw) | 4.87 | in⁶ |
| Distance Between Flange Centroids (ho) | 3.64 | in |
| Effective Radius (rts) | 1.04 | in |
Design Resources
- Beam Capacity Calculator — Check M4X6 for your span and loads
- Column Capacity Calculator — Check M4X6 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 M4X6 beam? 6 lb/ft (8.9 kg/m).
What is the section modulus of M4X6? Sx = 2.48 in³, Zx = 2.74 in³ (strong axis). Sy = 0.771 in³, Zy = 1.18 in³ (weak axis).
What steel grade is standard for M4X6? ASTM A36 (Fy = 36 ksi) for M-shapes. Verify with mill certificate.
What is the moment of inertia of M4X6? Ix = 4.72 in⁴ about the strong axis and Iy = 1.47 in⁴ about the weak axis. The radius of gyration is rx = 1.64 in and ry = 0.915 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.