AISC 360-22ASTM A992 / A6W21 Series
AISC W21x132 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 | 132 lb/ft | 196.4 kg/m |
| Cross-Sectional Area | A | 38.8 in² | 25032 mm² |
| Overall Depth | d | 21.8 in | 553.7 mm |
| Flange Width | bf | 12.4 in | 315 mm |
| Flange Thickness | tf | 1.04 in | 26.4 mm |
| Web Thickness | tw | 0.65 in | 16.5 mm |
| Flange Centroid Distance | ho | 20.8 in | 528.3 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 3220 in⁴ | 1340.3 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 295 in³ | 4834 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 333 in³ | 5457 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 9.12 in | 231.6 mm |
| Weak-Axis Inertia | Iy | 333 in⁴ | 138.6 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 53.5 in³ | 877 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 82.3 in³ | 1349 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.93 in | 74.4 mm |
| Torsional Constant | J | 11.3 in⁴ | 4703 ×10³ mm⁴ |
| Warping Constant | Cw | 56661.8 in⁶ | 9667.3 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.43 in | 87.1 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
1248.8 kip-ft
1694.4 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
382.6 kips
1703.1 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
5.96
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
30.3
✓ Compact Web (λw ≤ 90.5)