AISC 360-22ASTM A992 / A6W18 Series
AISC W18x119 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 | 119 lb/ft | 177.1 kg/m |
| Cross-Sectional Area | A | 35.1 in² | 22645 mm² |
| Overall Depth | d | 19 in | 482.6 mm |
| Flange Width | bf | 11.3 in | 287 mm |
| Flange Thickness | tf | 1.06 in | 26.9 mm |
| Web Thickness | tw | 0.655 in | 16.6 mm |
| Flange Centroid Distance | ho | 17.9 in | 454.7 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 2190 in⁴ | 911.5 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 231 in³ | 3785 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 262 in³ | 4293 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 7.9 in | 200.7 mm |
| Weak-Axis Inertia | Iy | 253 in⁴ | 105.3 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 44.9 in³ | 736 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 69.1 in³ | 1132 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.69 in | 68.3 mm |
| Torsional Constant | J | 10.6 in⁴ | 4412 ×10³ mm⁴ |
| Warping Constant | Cw | 31950.9 in⁶ | 5451.3 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.13 in | 79.5 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
982.5 kip-ft
1333.1 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
336 kips
1495.8 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
5.33
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
25.8
✓ Compact Web (λw ≤ 90.5)