AISC 360-22ASTM A992 / A6W21 Series
AISC W21x62 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 | 62 lb/ft | 92.3 kg/m |
| Cross-Sectional Area | A | 18.3 in² | 11806 mm² |
| Overall Depth | d | 21 in | 533.4 mm |
| Flange Width | bf | 8.24 in | 209.3 mm |
| Flange Thickness | tf | 0.615 in | 15.6 mm |
| Web Thickness | tw | 0.4 in | 10.2 mm |
| Flange Centroid Distance | ho | 20.4 in | 518.2 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 1330 in⁴ | 553.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 127 in³ | 2081 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 144 in³ | 2360 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 8.54 in | 216.9 mm |
| Weak-Axis Inertia | Iy | 57.5 in⁴ | 23.9 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 14 in³ | 229 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 21.7 in³ | 356 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1.77 in | 45 mm |
| Torsional Constant | J | 1.83 in⁴ | 762 ×10³ mm⁴ |
| Warping Constant | Cw | 9380.7 in⁶ | 1600.5 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.15 in | 54.6 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
540 kip-ft
732.7 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
226.8 kips
1009.6 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.7
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
49.4
✓ Compact Web (λw ≤ 90.5)