W21X223 Steel Beam — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 23.40 | in (594.4 mm) |
| Flange Width (bf) | 12.70 | in (322.6 mm) |
| Flange Thickness (tf) | 1.79 | in |
| Web Thickness (tw) | 1 | in |
| Area (A) | 66.50 | in² (429.1 cm²) |
| Weight | 223 | lb/ft (332 kg/m) |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 6,080 | 614 | in⁴ |
| Elastic Section Modulus (S) | 520 | 96.70 | in³ |
| Plastic Section Modulus (Z) | 601 | 150 | in³ |
| Radius of Gyration (r) | 9.56 | 3.04 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 59.50 | in⁴ |
| Warping Constant (Cw) | 71,700 | in⁶ |
| Distance Between Flange Centroids (ho) | 21.60 | in |
| Effective Radius (rts) | 3.57 | in |
Design Resources
- Beam Capacity Calculator — Check W21X223 for your span and loads
- Column Capacity Calculator — Check W21X223 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 W21X223 beam? 223 lb/ft (332 kg/m). A 40-ft length weighs approximately 8,920 lbs.
What is the section modulus of W21X223? Sx = 520 in³ (strong axis) and Sy = 96.7 in³ (weak axis). The plastic section modulus Zx = 601 in³ and Zy = 150 in³.
What steel grade is standard for W21X223? 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 W21X223? Ix = 6080 in⁴ about the strong axis and Iy = 614 in⁴ about the weak axis. The radius of gyration is rx = 9.56 in and ry = 3.04 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.