AISC 360-22ASTM A992 / A6W12 Series
AISC W12x136 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 | 136 lb/ft | 202.4 kg/m |
| Cross-Sectional Area | A | 39.9 in² | 25742 mm² |
| Overall Depth | d | 13.4 in | 340.4 mm |
| Flange Width | bf | 12.4 in | 315 mm |
| Flange Thickness | tf | 1.25 in | 31.8 mm |
| Web Thickness | tw | 0.79 in | 20.1 mm |
| Flange Centroid Distance | ho | 12.2 in | 309.9 mm |
Bending & Buckling Properties
| Property | Symbol | Imperial (US) | Metric (SI) |
|---|---|---|---|
| Strong-Axis Inertia | Ix | 1240 in⁴ | 516.1 ×10⁶ mm⁴ |
| Strong-Axis Elastic Modulus | Sx | 186 in³ | 3048 ×10³ mm³ |
| Strong-Axis Plastic Modulus | Zx | 214 in³ | 3507 ×10³ mm³ |
| Strong-Axis Radius of Gyration | rx | 5.58 in | 141.7 mm |
| Weak-Axis Inertia | Iy | 398 in⁴ | 165.7 ×10⁶ mm⁴ |
| Weak-Axis Elastic Modulus | Sy | 64.2 in³ | 1052 ×10³ mm³ |
| Weak-Axis Plastic Modulus | Zy | 98 in³ | 1606 ×10³ mm³ |
| Weak-Axis Radius of Gyration | ry | 3.16 in | 80.3 mm |
| Torsional Constant | J | 18.5 in⁴ | 7700 ×10³ mm⁴ |
| Warping Constant | Cw | 23136.9 in⁶ | 3947.5 ×10⁹ mm⁶ |
| Effective Radius of Gyration | rts | 3.61 in | 91.7 mm |
AISC 360-22 Design Capacities (Fy = 50 ksi / 345 MPa)
Plastic Moment Capacity (φMp)
802.5 kip-ft
1088.9 kN·m (φ = 0.90)Nominal Shear Capacity (φVn)
285.8 kips
1272.4 kN (φ = 0.90)Flange Slenderness (λf = bf / 2tf)
4.96
✓ Compact Flange (λf ≤ 9.15)Web Slenderness (λw = h / tw)
13.8
✓ Compact Web (λw ≤ 90.5)