AISC 360-22ASTM A992 / A6W12 Series
AISC W12x305 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 | 305 lb/ft | 453.9 kg/m |
| Cross-Sectional Area | A | 89.5 in² | 57742 mm² |
| Overall Depth | d | 16.3 in | 414 mm |
| Flange Width | bf | 13.2 in | 335.3 mm |
| Flange Thickness | tf | 2.71 in | 68.8 mm |
| Web Thickness | tw | 1.63 in | 41.4 mm |
| Flange Centroid Distance | ho | 13.6 in | 345.4 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 3550 in⁴ | 1477.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 435 in³ | 7128 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 537 in³ | 8800 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 6.29 in | 159.8 mm |
| Weak-Axis Inertia | Iy | 1050 in⁴ | 437 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 159 in³ | 2606 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 244 in³ | 3998 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.42 in | 86.9 mm |
| Torsional Constant | J | 185 in⁴ | 77003 ×10³ mm⁴ |
| Warping Constant | Cw | 76493.4 in⁶ | 13050.8 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 4.05 in | 102.9 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
2013.8 kip-ft
2732.4 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
717.4 kips
3193.4 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
2.44
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
6.7
✓ Compact Web (λw ≤ 90.5)