AISC 360-22ASTM A992 / A6W40 Series
AISC W40x372 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 | 372 lb/ft | 553.6 kg/m |
| Cross-Sectional Area | A | 110 in² | 70968 mm² |
| Overall Depth | d | 40.6 in | 1031.2 mm |
| Flange Width | bf | 16.1 in | 408.9 mm |
| Flange Thickness | tf | 2.05 in | 52.1 mm |
| Web Thickness | tw | 1.16 in | 29.5 mm |
| Flange Centroid Distance | ho | 38.6 in | 980.4 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 29600 in⁴ | 12320.5 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 1460 in³ | 23925 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 1680 in³ | 27530 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 16.5 in | 419.1 mm |
| Weak-Axis Inertia | Iy | 1420 in⁴ | 591 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 177 in³ | 2901 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 277 in³ | 4539 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.6 in | 91.4 mm |
| Torsional Constant | J | 116 in⁴ | 48283 ×10³ mm⁴ |
| Warping Constant | Cw | 831039.4 in⁶ | 141786.9 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 4.33 in | 110 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
6300 kip-ft
8548.1 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
1271.6 kips
5660.6 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
3.93
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
31.5
✓ Compact Web (λw ≤ 90.5)