W10X77 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 10.60 | in (269.2 mm) |
| Flange Width (bf) | 10.20 | in (259.1 mm) |
| Flange Thickness (tf) | 0.87 | in |
| Web Thickness (tw) | 0.53 | in |
| Area (A) | 22.70 | in² (146.5 cm²) |
| Weight | 77 | lb/ft (115 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 455 | 154 | in⁴ |
| Elastic Section Modulus (S) | 85.90 | 30.10 | in³ |
| Plastic Section Modulus (Z) | 97.60 | 45.90 | in³ |
| Radius of Gyration (r) | 4.49 | 2.60 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 5.11 | in⁴ |
| Warping Constant (Cw) | 3,630 | in⁶ |
| Distance Between Flange Centroids (ho) | 9.73 | in |
| Effective Radius (rts) | 2.95 | in |
Design Resources
- Beam Capacity Calculator — Check W10X77 for your span and loads
- Column Capacity Calculator — Check W10X77 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 W10X77 beam? 77 lb/ft (115 kg/m). A 40-ft length weighs approximately 3,080 lbs.
What is the section modulus of W10X77? Sx = 85.9 in³ (strong axis) and Sy = 30.1 in³ (weak axis). The plastic section modulus Zx = 97.6 in³ and Zy = 45.9 in³.
What steel grade is standard for W10X77? 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 W10X77? Ix = 455 in⁴ about the strong axis and Iy = 154 in⁴ about the weak axis. The radius of gyration is rx = 4.49 in and ry = 2.60 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.