AISC 360-22ASTM A992 / A6W4 Series
AISC W4x13 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 | 13 lb/ft | 19.3 kg/m |
| Cross-Sectional Area | A | 3.83 in² | 2471 mm² |
| Overall Depth | d | 4.16 in | 105.7 mm |
| Flange Width | bf | 4.06 in | 103.1 mm |
| Flange Thickness | tf | 0.345 in | 8.8 mm |
| Web Thickness | tw | 0.28 in | 7.1 mm |
| Flange Centroid Distance | ho | 3.82 in | 97 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 11.3 in⁴ | 4.7 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 5.5 in³ | 89 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 6.3 in³ | 103 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 1.72 in | 43.7 mm |
| Weak-Axis Inertia | Iy | 3.9 in⁴ | 1.6 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 1.9 in³ | 31 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 2.9 in³ | 48 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1 in | 25.4 mm |
| Torsional Constant | J | 0.151 in⁴ | 63 ×10³ mm⁴ |
| Warping Constant | Cw | 22 in⁶ | 3.8 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.16 in | 29.5 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
23.6 kip-ft
32 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
31.4 kips
140 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
5.88
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
12.4
✓ Compact Web (λw ≤ 90.5)