ST12X53 Steel ST-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 12.3 | 312.4 mm |
| Flange Width (bf) | 7.87 | 19.99 cm |
| Flange Thickness (tf) | 1.09 | 27.7 mm |
| Web Thickness (tw) | 0.62 | 15.7 mm |
| Area (A) | 15.6 in² | 100.6 cm² |
| Weight | 53 lb/ft | 78.9 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 216 | 38.4 | in⁴ |
| Elastic Section Modulus (S) | 24.1 | 9.76 | in³ |
| Plastic Section Modulus (Z) | 43.3 | 16.7 | in³ |
| Radius of Gyration (r) | 3.72 | 1.57 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 5.05 | in⁴ |
| Warping Constant (Cw) | 15 | 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 ST12X53 tee? 53 lb/ft (78.9 kg/m).
What is the section modulus of ST12X53? Sx = 24.1 in³, Zx = 43.3 in³ (strong axis). Sy = 9.76 in³, Zy = 16.7 in³ (weak axis).
What steel grade is standard for ST12X53? ASTM A36 (Fy = 36 ksi) for ST-shapes. Verify with mill certificate.
What is the moment of inertia of ST12X53? Ix = 216 in⁴ about the strong axis and Iy = 38.4 in⁴ about the weak axis. The radius of gyration is rx = 3.72 in and ry = 1.57 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.