AISC 360-22ASTM A992 / A6W12 Series
AISC W12x170 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 | 170 lb/ft | 253 kg/m |
| Cross-Sectional Area | A | 50 in² | 32258 mm² |
| Overall Depth | d | 14 in | 355.6 mm |
| Flange Width | bf | 12.6 in | 320 mm |
| Flange Thickness | tf | 1.56 in | 39.6 mm |
| Web Thickness | tw | 0.96 in | 24.4 mm |
| Flange Centroid Distance | ho | 12.4 in | 315 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 1650 in⁴ | 686.8 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 235 in³ | 3851 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 275 in³ | 4506 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 5.74 in | 145.8 mm |
| Weak-Axis Inertia | Iy | 517 in⁴ | 215.2 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 82.3 in³ | 1349 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 126 in³ | 2065 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.22 in | 81.8 mm |
| Torsional Constant | J | 35.6 in⁴ | 14818 ×10³ mm⁴ |
| Warping Constant | Cw | 31636.2 in⁶ | 5397.6 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.7 in | 94 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
1031.3 kip-ft
1399.3 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
362.9 kips
1615.4 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.04
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
11.3
✓ Compact Web (λw ≤ 90.5)