AISC 360-22ASTM A992 / A6W21 Series
AISC W21x93 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 | 93 lb/ft | 138.4 kg/m |
| Cross-Sectional Area | A | 27.3 in² | 17613 mm² |
| Overall Depth | d | 21.6 in | 548.6 mm |
| Flange Width | bf | 8.42 in | 213.9 mm |
| Flange Thickness | tf | 0.93 in | 23.6 mm |
| Web Thickness | tw | 0.58 in | 14.7 mm |
| Flange Centroid Distance | ho | 20.7 in | 525.8 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 2070 in⁴ | 861.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 192 in³ | 3146 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 221 in³ | 3622 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 8.7 in | 221 mm |
| Weak-Axis Inertia | Iy | 92.9 in⁴ | 38.7 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 22.1 in³ | 362 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 34.7 in³ | 569 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1.84 in | 46.7 mm |
| Torsional Constant | J | 6.03 in⁴ | 2510 ×10³ mm⁴ |
| Warping Constant | Cw | 15644.9 in⁶ | 2669.2 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.24 in | 56.9 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
828.8 kip-ft
1124.5 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
338.3 kips
1505.8 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.53
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
34
✓ Compact Web (λw ≤ 90.5)