W10X39 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 9.92 | in (252.0 mm) |
| Flange Width (bf) | 7.99 | in (202.9 mm) |
| Flange Thickness (tf) | 0.53 | in |
| Web Thickness (tw) | 0.32 | in |
| Area (A) | 11.50 | in² (74.2 cm²) |
| Weight | 39 | lb/ft (58 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 209 | 45 | in⁴ |
| Elastic Section Modulus (S) | 42.10 | 11.30 | in³ |
| Plastic Section Modulus (Z) | 46.80 | 17.20 | in³ |
| Radius of Gyration (r) | 4.27 | 1.98 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.98 | in⁴ |
| Warping Constant (Cw) | 992 | in⁶ |
| Distance Between Flange Centroids (ho) | 9.39 | in |
| Effective Radius (rts) | 2.24 | in |
Design Resources
- Beam Capacity Calculator — Check W10X39 for your span and loads
- Column Capacity Calculator — Check W10X39 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 W10X39 beam? 39 lb/ft (58 kg/m). A 40-ft length weighs approximately 1,560 lbs.
What is the section modulus of W10X39? Sx = 42.1 in³ (strong axis) and Sy = 11.3 in³ (weak axis). The plastic section modulus Zx = 46.8 in³ and Zy = 17.2 in³.
What steel grade is standard for W10X39? 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 W10X39? Ix = 209 in⁴ about the strong axis and Iy = 45 in⁴ about the weak axis. The radius of gyration is rx = 4.27 in and ry = 1.98 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.