AISC 360-22ASTM A992 / A6W8 Series
AISC W8x48 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 | 48 lb/ft | 71.4 kg/m |
| Cross-Sectional Area | A | 14.1 in² | 9097 mm² |
| Overall Depth | d | 8.5 in | 215.9 mm |
| Flange Width | bf | 8.11 in | 206 mm |
| Flange Thickness | tf | 0.685 in | 17.4 mm |
| Web Thickness | tw | 0.4 in | 10.2 mm |
| Flange Centroid Distance | ho | 7.82 in | 198.6 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 184 in⁴ | 76.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 43.2 in³ | 708 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 49 in³ | 803 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 3.61 in | 91.7 mm |
| Weak-Axis Inertia | Iy | 60.9 in⁴ | 25.3 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 15 in³ | 246 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 22.9 in³ | 375 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.08 in | 52.8 mm |
| Torsional Constant | J | 1.96 in⁴ | 816 ×10³ mm⁴ |
| Warping Constant | Cw | 1465.3 in⁶ | 250 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.35 in | 59.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
183.8 kip-ft
249.3 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
91.8 kips
408.7 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
5.92
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
17.8
✓ Compact Web (λw ≤ 90.5)