AISC 360-22ASTM A992 / A6W6 Series
AISC W6x8.5 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 | 8 lb/ft | 11.9 kg/m |
| Cross-Sectional Area | A | 2.52 in² | 1626 mm² |
| Overall Depth | d | 5.83 in | 148.1 mm |
| Flange Width | bf | 3.94 in | 100.1 mm |
| Flange Thickness | tf | 0.195 in | 5 mm |
| Web Thickness | tw | 0.17 in | 4.3 mm |
| Flange Centroid Distance | ho | 5.64 in | 143.3 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 14.9 in⁴ | 6.2 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 5.1 in³ | 84 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 5.7 in³ | 94 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 2.43 in | 61.7 mm |
| Weak-Axis Inertia | Iy | 2 in⁴ | 0.8 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 1 in³ | 17 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 1.6 in³ | 26 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 0.89 in | 22.6 mm |
| Torsional Constant | J | 0.033 in⁴ | 14 ×10³ mm⁴ |
| Warping Constant | Cw | 24.9 in⁶ | 4.2 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.05 in | 26.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
21.5 kip-ft
29.2 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
26.8 kips
119.1 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
10.1
Non-compact FlangeWeb Slenderness (λw = h / tw)
32
✓ Compact Web (λw ≤ 90.5)