W33X118 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 32.90 | in (835.7 mm) |
| Flange Width (bf) | 11.50 | in (292.1 mm) |
| Flange Thickness (tf) | 0.74 | in |
| Web Thickness (tw) | 0.55 | in |
| Area (A) | 34.70 | in² (223.9 cm²) |
| Weight | 118 | lb/ft (176 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 5,900 | 187 | in⁴ |
| Elastic Section Modulus (S) | 359 | 32.60 | in³ |
| Plastic Section Modulus (Z) | 415 | 51.30 | in³ |
| Radius of Gyration (r) | 13 | 2.32 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 5.30 | in⁴ |
| Warping Constant (Cw) | 48,300 | in⁶ |
| Distance Between Flange Centroids (ho) | 32.20 | in |
| Effective Radius (rts) | 2.89 | in |
Design Resources
- Beam Capacity Calculator — Check W33X118 for your span and loads
- Column Capacity Calculator — Check W33X118 as a column
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full W-shape dimension table
- Steel Grades Reference — A992/A572 material properties
Frequently Asked Questions
What is the weight of a W33X118 beam? 118 lb/ft (176 kg/m). A 40-ft length weighs approximately 4,720 lbs.
What is the section modulus of W33X118? Sx = 359 in³ (strong axis) and Sy = 32.6 in³ (weak axis). The plastic section modulus Zx = 415 in³ and Zy = 51.3 in³.
What steel grade is standard for W33X118? Typically ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for W-shapes. Also available in A572 Grade 50 or A36. Verify with mill certificate.
What is the moment of inertia of W33X118? Ix = 5900 in⁴ about the strong axis and Iy = 187 in⁴ about the weak axis. The radius of gyration is rx = 13 in and ry = 2.32 in.
Related Pages
- Steel Beam Sizes Reference
- Beam Capacity Calculator
- Column Capacity Calculator
- Section Properties Database
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.