AISC 360-22ASTM A992 / A6W30 Series
AISC W30x261 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 | 261 lb/ft | 388.4 kg/m |
| Cross-Sectional Area | A | 77 in² | 49677 mm² |
| Overall Depth | d | 31.6 in | 802.6 mm |
| Flange Width | bf | 15.2 in | 386.1 mm |
| Flange Thickness | tf | 1.65 in | 41.9 mm |
| Web Thickness | tw | 0.93 in | 23.6 mm |
| Flange Centroid Distance | ho | 30 in | 762 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 13100 in⁴ | 5452.6 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 829 in³ | 13585 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 943 in³ | 15453 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 13.1 in | 332.7 mm |
| Weak-Axis Inertia | Iy | 959 in⁴ | 399.2 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 127 in³ | 2081 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 196 in³ | 3212 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.53 in | 89.7 mm |
| Torsional Constant | J | 54.1 in⁴ | 22518 ×10³ mm⁴ |
| Warping Constant | Cw | 338396.7 in⁶ | 57735.2 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 4.16 in | 105.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
3536.3 kip-ft
4798.2 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
793.5 kips
3532.2 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.61
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
30.4
✓ Compact Web (λw ≤ 90.5)