AISC 360-22ASTM A992 / A6W40 Series
AISC W40x392 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 | 392 lb/ft | 583.4 kg/m |
| Cross-Sectional Area | A | 116 in² | 74839 mm² |
| Overall Depth | d | 41.6 in | 1056.6 mm |
| Flange Width | bf | 12.4 in | 315 mm |
| Flange Thickness | tf | 2.52 in | 64 mm |
| Web Thickness | tw | 1.42 in | 36.1 mm |
| Flange Centroid Distance | ho | 39.1 in | 993.1 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 29900 in⁴ | 12445.3 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 1440 in³ | 23597 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 1710 in³ | 28022 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 16.1 in | 408.9 mm |
| Weak-Axis Inertia | Iy | 803 in⁴ | 334.2 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 130 in³ | 2130 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 212 in³ | 3474 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.64 in | 67.1 mm |
| Torsional Constant | J | 172 in⁴ | 71592 ×10³ mm⁴ |
| Warping Constant | Cw | 481625.1 in⁶ | 82172 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.3 in | 83.8 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
6412.5 kip-ft
8700.8 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
1594.9 kips
7100.1 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
2.46
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
25.7
✓ Compact Web (λw ≤ 90.5)