AISC 360-22ASTM A992 / A6W12 Series
AISC W12x19 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 | 19 lb/ft | 28.3 kg/m |
| Cross-Sectional Area | A | 5.57 in² | 3594 mm² |
| Overall Depth | d | 12.2 in | 309.9 mm |
| Flange Width | bf | 4.01 in | 101.9 mm |
| Flange Thickness | tf | 0.35 in | 8.9 mm |
| Web Thickness | tw | 0.235 in | 6 mm |
| Flange Centroid Distance | ho | 11.9 in | 302.3 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 130 in⁴ | 54.1 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 21.3 in³ | 349 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 24.7 in³ | 405 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 4.82 in | 122.4 mm |
| Weak-Axis Inertia | Iy | 3.8 in⁴ | 1.6 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 1.9 in³ | 31 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 3 in³ | 49 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 0.82 in | 20.9 mm |
| Torsional Constant | J | 0.18 in⁴ | 75 ×10³ mm⁴ |
| Warping Constant | Cw | 206.2 in⁶ | 35.2 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 1.02 in | 25.9 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
92.6 kip-ft
125.7 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
77.4 kips
344.6 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
5.73
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
48.9
✓ Compact Web (λw ≤ 90.5)