AISC 360-22ASTM A992 / A6W16 Series
AISC W16x40 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 | 40 lb/ft | 59.5 kg/m |
| Cross-Sectional Area | A | 11.8 in² | 7613 mm² |
| Overall Depth | d | 16 in | 406.4 mm |
| Flange Width | bf | 7 in | 177.8 mm |
| Flange Thickness | tf | 0.505 in | 12.8 mm |
| Web Thickness | tw | 0.305 in | 7.7 mm |
| Flange Centroid Distance | ho | 15.5 in | 393.7 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 518 in⁴ | 215.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 64.7 in³ | 1060 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 73 in³ | 1196 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 6.63 in | 168.4 mm |
| Weak-Axis Inertia | Iy | 28.9 in⁴ | 12 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 8.3 in³ | 135 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 12.7 in³ | 208 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1.57 in | 39.9 mm |
| Torsional Constant | J | 0.794 in⁴ | 330 ×10³ mm⁴ |
| Warping Constant | Cw | 2722.9 in⁶ | 464.6 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.86 in | 47.2 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
273.8 kip-ft
371.4 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
131.8 kips
586.5 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.93
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
49.1
✓ Compact Web (λw ≤ 90.5)