AISC 360-22ASTM A992 / A6W14 Series
AISC W14x398 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 | 398 lb/ft | 592.3 kg/m |
| Cross-Sectional Area | A | 117 in² | 75484 mm² |
| Overall Depth | d | 18.3 in | 464.8 mm |
| Flange Width | bf | 16.6 in | 421.6 mm |
| Flange Thickness | tf | 2.85 in | 72.4 mm |
| Web Thickness | tw | 1.77 in | 45 mm |
| Flange Centroid Distance | ho | 15.5 in | 393.7 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 6000 in⁴ | 2497.4 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 656 in³ | 10750 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 801 in³ | 13126 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 7.16 in | 181.9 mm |
| Weak-Axis Inertia | Iy | 2170 in⁴ | 903.2 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 262 in³ | 4293 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 402 in³ | 6588 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 4.31 in | 109.5 mm |
| Torsional Constant | J | 273 in⁴ | 113631 ×10³ mm⁴ |
| Warping Constant | Cw | 203038 in⁶ | 34641.1 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 5.05 in | 128.3 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
3003.8 kip-ft
4075.6 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
874.6 kips
3893.2 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
2.91
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
7.1
✓ Compact Web (λw ≤ 90.5)