W27X84 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 26.70 | in (678.2 mm) |
| Flange Width (bf) | 10 | in (254.0 mm) |
| Flange Thickness (tf) | 0.64 | in |
| Web Thickness (tw) | 0.46 | in |
| Area (A) | 24.70 | in² (159.4 cm²) |
| Weight | 84 | lb/ft (125 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 2,850 | 106 | in⁴ |
| Elastic Section Modulus (S) | 213 | 21.20 | in³ |
| Plastic Section Modulus (Z) | 244 | 33.20 | in³ |
| Radius of Gyration (r) | 10.70 | 2.07 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 2.81 | in⁴ |
| Warping Constant (Cw) | 17,900 | in⁶ |
| Distance Between Flange Centroids (ho) | 26.10 | in |
| Effective Radius (rts) | 2.54 | in |
Design Resources
- Beam Capacity Calculator — Check W27X84 for your span and loads
- Column Capacity Calculator — Check W27X84 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 W27X84 beam? 84 lb/ft (125 kg/m). A 40-ft length weighs approximately 3,360 lbs.
What is the section modulus of W27X84? Sx = 213 in³ (strong axis) and Sy = 21.2 in³ (weak axis). The plastic section modulus Zx = 244 in³ and Zy = 33.2 in³.
What steel grade is standard for W27X84? 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 W27X84? Ix = 2850 in⁴ about the strong axis and Iy = 106 in⁴ about the weak axis. The radius of gyration is rx = 10.70 in and ry = 2.07 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.