ST2X3.85 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 2 | 50.8 mm |
| Flange Width (bf) | 2.66 | 6.76 cm |
| Flange Thickness (tf) | 0.293 | 7.4 mm |
| Web Thickness (tw) | 0.193 | 4.9 mm |
| Area (A) | 1.13 in² | 7.3 cm² |
| Weight | 3.85 lb/ft | 5.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 0.307 | 0.374 | in⁴ |
| Elastic Section Modulus (S) | 0.198 | 0.281 | in³ |
| Plastic Section Modulus (Z) | 0.381 | 0.485 | in³ |
| Radius of Gyration (r) | 0.522 | 0.576 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.036 | in⁴ |
| Warping Constant (Cw) | 0.005 | 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 ST2X3.85 tee? 3.85 lb/ft (5.7 kg/m).
What is the section modulus of ST2X3.85? Sx = 0.198 in³, Zx = 0.381 in³ (strong axis). Sy = 0.281 in³, Zy = 0.485 in³ (weak axis).
What steel grade is standard for ST2X3.85? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST2X3.85? Ix = 0.307 in⁴ about the strong axis and Iy = 0.374 in⁴ about the weak axis. The radius of gyration is rx = 0.522 in and ry = 0.576 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.