AISC 360-22ASTM A992 / A6W21 Series
AISC W21x182 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 | 182 lb/ft | 270.8 kg/m |
| Cross-Sectional Area | A | 53.6 in² | 34581 mm² |
| Overall Depth | d | 22.7 in | 576.6 mm |
| Flange Width | bf | 12.5 in | 317.5 mm |
| Flange Thickness | tf | 1.48 in | 37.6 mm |
| Web Thickness | tw | 0.83 in | 21.1 mm |
| Flange Centroid Distance | ho | 21.2 in | 538.5 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 4730 in⁴ | 1968.8 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 417 in³ | 6833 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 476 in³ | 7800 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 9.4 in | 238.8 mm |
| Weak-Axis Inertia | Iy | 483 in⁴ | 201 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 77.2 in³ | 1265 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 119 in³ | 1950 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3 in | 76.2 mm |
| Torsional Constant | J | 30.7 in⁴ | 12778 ×10³ mm⁴ |
| Warping Constant | Cw | 85622.2 in⁶ | 14608.4 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.51 in | 89.2 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
1785 kip-ft
2422 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
508.7 kips
2264.6 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.22
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
23.8
✓ Compact Web (λw ≤ 90.5)