AISC 360-22ASTM A992 / A6W18 Series
AISC W18x211 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 | 211 lb/ft | 314 kg/m |
| Cross-Sectional Area | A | 62.3 in² | 40193 mm² |
| Overall Depth | d | 20.7 in | 525.8 mm |
| Flange Width | bf | 11.6 in | 294.6 mm |
| Flange Thickness | tf | 1.91 in | 48.5 mm |
| Web Thickness | tw | 1.06 in | 26.9 mm |
| Flange Centroid Distance | ho | 18.8 in | 477.5 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 4330 in⁴ | 1802.3 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 419 in³ | 6866 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 490 in³ | 8030 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 8.35 in | 212.1 mm |
| Weak-Axis Inertia | Iy | 493 in⁴ | 205.2 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 85.3 in³ | 1398 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 132 in³ | 2163 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.82 in | 71.6 mm |
| Torsional Constant | J | 58.6 in⁴ | 24391 ×10³ mm⁴ |
| Warping Constant | Cw | 68308.9 in⁶ | 11654.5 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.32 in | 84.3 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
1837.5 kip-ft
2493.2 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
592.4 kips
2637.3 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
3.04
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
15.9
✓ Compact Web (λw ≤ 90.5)