WT18X151 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 18.7 | 475.0 mm |
| Flange Width (bf) | 16.7 | 42.42 cm |
| Flange Thickness (tf) | 1.68 | 42.7 mm |
| Web Thickness (tw) | 0.945 | 24.0 mm |
| Area (A) | 44.5 in² | 287.1 cm² |
| Weight | 151 lb/ft | 224.7 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 1280 | 648 | in⁴ |
| Elastic Section Modulus (S) | 88.8 | 77.8 | in³ |
| Plastic Section Modulus (Z) | 158 | 120 | in³ |
| Radius of Gyration (r) | 5.37 | 3.82 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 32.1 | in⁴ |
| Warping Constant (Cw) | 285 | 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 WT18X151 tee? 151 lb/ft (224.7 kg/m).
What is the section modulus of WT18X151? Sx = 88.8 in³, Zx = 158 in³ (strong axis). Sy = 77.8 in³, Zy = 120 in³ (weak axis).
What steel grade is standard for WT18X151? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT18X151? Ix = 1280 in⁴ about the strong axis and Iy = 648 in⁴ about the weak axis. The radius of gyration is rx = 5.37 in and ry = 3.82 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.