AISC 360-22ASTM A992 / A6W12 Series
AISC W12x50 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 | 50 lb/ft | 74.4 kg/m |
| Cross-Sectional Area | A | 14.6 in² | 9419 mm² |
| Overall Depth | d | 12.2 in | 309.9 mm |
| Flange Width | bf | 8.08 in | 205.2 mm |
| Flange Thickness | tf | 0.64 in | 16.3 mm |
| Web Thickness | tw | 0.37 in | 9.4 mm |
| Flange Centroid Distance | ho | 11.6 in | 294.6 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 391 in⁴ | 162.7 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 64.2 in³ | 1052 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 71.9 in³ | 1178 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 5.18 in | 131.6 mm |
| Weak-Axis Inertia | Iy | 56.3 in⁴ | 23.4 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 13.9 in³ | 228 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 21.3 in³ | 349 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 1.96 in | 49.8 mm |
| Torsional Constant | J | 1.71 in⁴ | 712 ×10³ mm⁴ |
| Warping Constant | Cw | 2959 in⁶ | 504.8 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.25 in | 57.2 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
269.6 kip-ft
365.8 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
121.9 kips
542.6 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.31
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
29.5
✓ Compact Web (λw ≤ 90.5)