MT4X3.1 Steel MT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 4 | 101.6 mm |
| Flange Width (bf) | 2.28 | 5.79 cm |
| Flange Thickness (tf) | 0.177 | 4.5 mm |
| Web Thickness (tw) | 0.129 | 3.3 mm |
| Area (A) | 0.911 in² | 5.9 cm² |
| Weight | 3.1 lb/ft | 4.6 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1.5 | 0.176 | in⁴ |
| Elastic Section Modulus (S) | 0.533 | 0.154 | in³ |
| Plastic Section Modulus (Z) | 0.967 | 0.247 | in³ |
| Radius of Gyration (r) | 1.29 | 0.441 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.008 | in⁴ |
| Warping Constant (Cw) | 0.004 | in⁶ |
Design Resources
- 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 MT4X3.1 tee? 3.1 lb/ft (4.6 kg/m).
What is the section modulus of MT4X3.1? Sx = 0.533 in³, Zx = 0.967 in³ (strong axis). Sy = 0.154 in³, Zy = 0.247 in³ (weak axis).
What steel grade is standard for MT4X3.1? ASTM A36 (Fy = 36 ksi) for MT-shapes. Verify with mill certificate.
What is the moment of inertia of MT4X3.1? Ix = 1.5 in⁴ about the strong axis and Iy = 0.176 in⁴ about the weak axis. The radius of gyration is rx = 1.29 in and ry = 0.441 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.