AISC 360-22ASTM A992 / A6W40 Series
AISC W40x297 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 | 297 lb/ft | 442 kg/m |
| Cross-Sectional Area | A | 87.3 in² | 56322 mm² |
| Overall Depth | d | 39.8 in | 1010.9 mm |
| Flange Width | bf | 15.8 in | 401.3 mm |
| Flange Thickness | tf | 1.65 in | 41.9 mm |
| Web Thickness | tw | 0.93 in | 23.6 mm |
| Flange Centroid Distance | ho | 38.2 in | 970.3 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 23200 in⁴ | 9656.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 1170 in³ | 19173 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 1330 in³ | 21795 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 16.3 in | 414 mm |
| Weak-Axis Inertia | Iy | 1090 in⁴ | 453.7 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 138 in³ | 2261 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 215 in³ | 3523 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.54 in | 89.9 mm |
| Torsional Constant | J | 61.2 in⁴ | 25473 ×10³ mm⁴ |
| Warping Constant | Cw | 628001.4 in⁶ | 107145.8 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 4.22 in | 107.2 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
4987.5 kip-ft
6767.3 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
999.4 kips
4448.8 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.79
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
39.2
✓ Compact Web (λw ≤ 90.5)