W27X161 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 27.60 | in (701.0 mm) |
| Flange Width (bf) | 14 | in (355.6 mm) |
| Flange Thickness (tf) | 1.08 | in |
| Web Thickness (tw) | 0.66 | in |
| Area (A) | 47.60 | in² (307.1 cm²) |
| Weight | 161 | lb/ft (240 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 6,310 | 497 | in⁴ |
| Elastic Section Modulus (S) | 458 | 70.90 | in³ |
| Plastic Section Modulus (Z) | 515 | 109 | in³ |
| Radius of Gyration (r) | 11.50 | 3.23 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 15.10 | in⁴ |
| Warping Constant (Cw) | 87,300 | in⁶ |
| Distance Between Flange Centroids (ho) | 26.50 | in |
| Effective Radius (rts) | 3.79 | in |
Design Resources
- Beam Capacity Calculator — Check W27X161 for your span and loads
- Column Capacity Calculator — Check W27X161 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 W27X161 beam? 161 lb/ft (240 kg/m). A 40-ft length weighs approximately 6,440 lbs.
What is the section modulus of W27X161? Sx = 458 in³ (strong axis) and Sy = 70.9 in³ (weak axis). The plastic section modulus Zx = 515 in³ and Zy = 109 in³.
What steel grade is standard for W27X161? 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 W27X161? Ix = 6310 in⁴ about the strong axis and Iy = 497 in⁴ about the weak axis. The radius of gyration is rx = 11.50 in and ry = 3.23 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.