W12X22 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 12.30 | in (312.4 mm) |
| Flange Width (bf) | 4.03 | in (102.4 mm) |
| Flange Thickness (tf) | 0.42 | in |
| Web Thickness (tw) | 0.26 | in |
| Area (A) | 6.48 | in² (41.8 cm²) |
| Weight | 22 | lb/ft (33 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 156 | 4.66 | in⁴ |
| Elastic Section Modulus (S) | 25.40 | 2.31 | in³ |
| Plastic Section Modulus (Z) | 29.30 | 3.66 | in³ |
| Radius of Gyration (r) | 4.91 | 0.85 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 0.29 | in⁴ |
| Warping Constant (Cw) | 164 | in⁶ |
| Distance Between Flange Centroids (ho) | 11.90 | in |
| Effective Radius (rts) | 1.04 | in |
Design Resources
- Beam Capacity Calculator — Check W12X22 for your span and loads
- Column Capacity Calculator — Check W12X22 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 W12X22 beam? 22 lb/ft (33 kg/m). A 40-ft length weighs approximately 880 lbs.
What is the section modulus of W12X22? Sx = 25.4 in³ (strong axis) and Sy = 2.3 in³ (weak axis). The plastic section modulus Zx = 29.3 in³ and Zy = 3.7 in³.
What steel grade is standard for W12X22? 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 W12X22? Ix = 156 in⁴ about the strong axis and Iy = 4.7 in⁴ about the weak axis. The radius of gyration is rx = 4.91 in and ry = 0.85 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.