AISC 360-22ASTM A992 / A6W8 Series
AISC W8x15 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 | 15 lb/ft | 22.3 kg/m |
| Cross-Sectional Area | A | 4.44 in² | 2865 mm² |
| Overall Depth | d | 8.11 in | 206 mm |
| Flange Width | bf | 4.02 in | 102.1 mm |
| Flange Thickness | tf | 0.315 in | 8 mm |
| Web Thickness | tw | 0.245 in | 6.2 mm |
| Flange Centroid Distance | ho | 7.8 in | 198.1 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 48 in⁴ | 20 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 11.8 in³ | 193 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 13.6 in³ | 223 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 3.29 in | 83.6 mm |
| Weak-Axis Inertia | Iy | 3.4 in⁴ | 1.4 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 1.7 in³ | 28 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 2.7 in³ | 44 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 0.88 in | 22.3 mm |
| Torsional Constant | J | 0.137 in⁴ | 57 ×10³ mm⁴ |
| Warping Constant | Cw | 81.5 in⁶ | 13.9 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.06 in | 26.9 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
51 kip-ft
69.2 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
53.6 kips
238.8 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.38
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
30.5
✓ Compact Web (λw ≤ 90.5)