Steel Beam Sizes / AISC / Angles / L3-1/2x3x1/2
L3-1/2x3x1/2 Steel Beam Dimensions and Properties
AISC Angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L3-1/2x3x1/2 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 10.20 lb/ft | 15.10 kg/m |
| Width | 3.50 in | 88.90 mm |
| Height | 3.00 in | 76.20 mm |
| t | 0.500 in | 12.700 mm |
| Area | 3.02 in² | 1,950.00 mm² |
| Ix | 3.45 in⁴ | 1,440,000 mm⁴ |
| Iy | 2.32 in⁴ | 966,000.00 mm⁴ |
| Sx | 1.45 in³ | 23,800.00 mm³ |
| Sy | 1.09 in³ | 17,900.00 mm³ |
| Zx | 2.61 in³ | 42,800.00 mm³ |
| Zy | 1.97 in³ | 32,300.00 mm³ |
| rx | 1.07 in | 27.20 mm |
| ry | 0.88 in | 22.30 mm |
| J | 0.26 in⁴ | 108,000.00 mm⁴ |
| Cw | 0.19 in⁶ | 51,300,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L3-1/2x3x1/2.
Lighter in L3
L3-1/2x3-1/2x7/16
- Weight
- 9.8 lb/ft (-3.9%)
- Depth
- 3.50 in (+17%)
- Ix
- 3.3 in⁴ (-5.8%)
Heavier in L3
L3-1/2x3-1/2x1/2
- Weight
- 11.1 lb/ft (+8.8%)
- Depth
- 3.50 in (+17%)
- Ix
- 3.6 in⁴ (+5.2%)
Closest Iₓ in L3
L3-1/2x2-1/2x1/2
- Weight
- 9.4 lb/ft (-7.8%)
- Depth
- 2.50 in (-17%)
- Ix
- 3.2 in⁴ (-6.1%)
Similar weight in L4
L4x4x3/8
- Weight
- 9.8 lb/ft (-3.9%)
- Depth
- 4.00 in (+33%)
- Ix
- 4.3 in⁴ (+25%)
Source: AISC Shapes Database v16.0 · Methodology