Steel Beam Sizes / AISC / Angles / L3-1/2x3x1/4
L3-1/2x3x1/4 Steel Beam Dimensions and Properties
AISC Angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L3-1/2x3x1/4 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 | 5.40 lb/ft | 8.00 kg/m |
| Width | 3.50 in | 88.90 mm |
| Height | 3.00 in | 76.20 mm |
| t | 0.250 in | 6.350 mm |
| Area | 1.58 in² | 1,020.00 mm² |
| Ix | 1.92 in⁴ | 799,000.00 mm⁴ |
| Iy | 1.30 in⁴ | 541,000.00 mm⁴ |
| Sx | 0.77 in³ | 12,700.00 mm³ |
| Sy | 0.59 in³ | 9,590.00 mm³ |
| Zx | 1.39 in³ | 22,800.00 mm³ |
| Zy | 1.04 in³ | 17,000.00 mm³ |
| rx | 1.10 in | 27.90 mm |
| ry | 0.91 in | 23.10 mm |
| J | 0.04 in⁴ | 15,000.00 mm⁴ |
| Cw | 0.03 in⁶ | 7,250,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L3-1/2x3x1/4.
Lighter in L3
L3x2x5/16
- Weight
- 5.0 lb/ft (-7.4%)
- Depth
- 2.00 in (-33%)
- Ix
- 1.3 in⁴ (-31%)
Heavier in L3
L3x2-1/2x5/16
- Weight
- 5.6 lb/ft (+3.7%)
- Depth
- 2.50 in (-17%)
- Ix
- 1.4 in⁴ (-27%)
Closest Iₓ in L3
L3x2x1/2
- Weight
- 7.7 lb/ft (+43%)
- Depth
- 2.00 in (-33%)
- Ix
- 1.9 in⁴ (0.0%)
Similar weight in L2
L2-1/2x2x3/8
- Weight
- 5.3 lb/ft (-1.9%)
- Depth
- 2.00 in (-33%)
- Ix
- 0.9 in⁴ (-52%)
Source: AISC Shapes Database v16.0 · Methodology