AISC 360-22ASTM A992 / A6W30 Series
AISC W30x108 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 | 108 lb/ft | 160.7 kg/m |
| Cross-Sectional Area | A | 31.7 in² | 20452 mm² |
| Overall Depth | d | 29.8 in | 756.9 mm |
| Flange Width | bf | 10.5 in | 266.7 mm |
| Flange Thickness | tf | 0.76 in | 19.3 mm |
| Web Thickness | tw | 0.545 in | 13.8 mm |
| Flange Centroid Distance | ho | 29 in | 736.6 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 4470 in⁴ | 1860.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 299 in³ | 4900 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 346 in³ | 5670 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 11.9 in | 302.3 mm |
| Weak-Axis Inertia | Iy | 146 in⁴ | 60.8 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 27.9 in³ | 457 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 43.9 in³ | 719 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 2.15 in | 54.6 mm |
| Torsional Constant | J | 4.99 in⁴ | 2077 ×10³ mm⁴ |
| Warping Constant | Cw | 48634.7 in⁶ | 8297.8 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 2.67 in | 67.8 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
1297.5 kip-ft
1760.5 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
438.5 kips
1952.1 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
6.91
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
51.9
✓ Compact Web (λw ≤ 90.5)