AISC 360-22ASTM A992 / A6W21 Series
AISC W21x223 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 | 223 lb/ft | 331.9 kg/m |
| Cross-Sectional Area | A | 66.5 in² | 42903 mm² |
| Overall Depth | d | 23.4 in | 594.4 mm |
| Flange Width | bf | 12.7 in | 322.6 mm |
| Flange Thickness | tf | 1.79 in | 45.5 mm |
| Web Thickness | tw | 1 in | 25.4 mm |
| Flange Centroid Distance | ho | 21.6 in | 548.6 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 6080 in⁴ | 2530.7 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 520 in³ | 8521 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 601 in³ | 9849 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 9.56 in | 242.8 mm |
| Weak-Axis Inertia | Iy | 614 in⁴ | 255.6 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 96.7 in³ | 1585 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 150 in³ | 2458 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.04 in | 77.2 mm |
| Torsional Constant | J | 59.5 in⁴ | 24766 ×10³ mm⁴ |
| Warping Constant | Cw | 112851.4 in⁶ | 19254 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.57 in | 90.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
2253.8 kip-ft
3058 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
631.8 kips
2812.5 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
3.55
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
19.8
✓ Compact Web (λw ≤ 90.5)