AISC 360-22ASTM A992 / A6W24 Series
AISC W24x55 Properties & Dimensions
Standard wide flange I-beam cross-section properties, geometric dimensions, and LRFD design capacities per AISC Steel Construction Manual 15th/16th Edition.
Cross-Section Technical Schematic
Dual Units: Imperial (US) · SI MetricGeometric Dimensions & Area
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Nominal Weight | w | 55 lb/ft | 81.8 kg/m |
| Cross-Sectional Area | A | 16.2 in² | 10452 mm² |
| Overall Depth | d | 23.6 in | 599.4 mm |
| Flange Width | bf | 7.01 in | 178.1 mm |
| Flange Thickness | tf | 0.505 in | 12.8 mm |
| Web Thickness | tw | 0.395 in | 10 mm |
| Flange Centroid Distance | ho | 23.1 in | 586.7 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 1350 in⁴ | 561.9 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 114 in³ | 1868 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 134 in³ | 2196 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 9.11 in | 231.4 mm |
| Weak-Axis Inertia | Iy | 29.1 in⁴ | 12.1 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 8.3 in³ | 136 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 13.3 in³ | 218 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1.34 in | 34 mm |
| Torsional Constant | J | 1.18 in⁴ | 491 ×10³ mm⁴ |
| Warping Constant | Cw | 6091.1 in⁶ | 1039.2 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.72 in | 43.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
502.5 kip-ft
681.8 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
251.7 kips
1120.4 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.94
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
57.2
✓ Compact Web (λw ≤ 90.5)