AISC 360-22ASTM A992 / A6W40 Series
AISC W40x431 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 | 431 lb/ft | 641.4 kg/m |
| Cross-Sectional Area | A | 127 in² | 81935 mm² |
| Overall Depth | d | 41.3 in | 1049 mm |
| Flange Width | bf | 16.2 in | 411.5 mm |
| Flange Thickness | tf | 2.36 in | 59.9 mm |
| Web Thickness | tw | 1.34 in | 34 mm |
| Flange Centroid Distance | ho | 38.9 in | 988.1 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 34800 in⁴ | 14484.9 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 1690 in³ | 27694 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 1960 in³ | 32119 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 16.6 in | 421.6 mm |
| Weak-Axis Inertia | Iy | 1690 in⁴ | 703.4 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 208 in³ | 3409 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 328 in³ | 5375 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.65 in | 92.7 mm |
| Torsional Constant | J | 177 in⁴ | 73673 ×10³ mm⁴ |
| Warping Constant | Cw | 1004172.6 in⁶ | 171325.9 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 4.41 in | 112 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
7350 kip-ft
9972.8 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
1494.2 kips
6651.7 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
3.43
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
27.3
✓ Compact Web (λw ≤ 90.5)