Steel Beam Sizes / AISC / Angles / L4x3-1/2x5/16
L4x3-1/2x5/16 Steel Beam Dimensions and Properties
AISC Angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L4x3-1/2x5/16 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 | 7.70 lb/ft | 11.40 kg/m |
| Width | 4.00 in | 102.00 mm |
| Height | 3.50 in | 88.90 mm |
| t | 0.313 in | 7.940 mm |
| Area | 2.25 in² | 1,450.00 mm² |
| Ix | 3.53 in⁴ | 1,470,000 mm⁴ |
| Iy | 2.52 in⁴ | 1,050,000 mm⁴ |
| Sx | 1.25 in³ | 20,500.00 mm³ |
| Sy | 0.98 in³ | 16,100.00 mm³ |
| Zx | 2.24 in³ | 36,700.00 mm³ |
| Zy | 1.74 in³ | 28,500.00 mm³ |
| rx | 1.25 in | 31.80 mm |
| ry | 1.06 in | 26.90 mm |
| J | 0.08 in⁴ | 32,500.00 mm⁴ |
| Cw | 0.08 in⁶ | 21,400,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L4x3-1/2x5/16.
Lighter in L4
L4x3x5/16
- Weight
- 7.2 lb/ft (-6.5%)
- Depth
- 3.00 in (-14%)
- Ix
- 3.4 in⁴ (-4.8%)
Heavier in L4
L4x4x5/16
- Weight
- 8.2 lb/ft (+6.5%)
- Depth
- 4.00 in (+14%)
- Ix
- 3.7 in⁴ (+4.0%)
Closest Iₓ in L4
L4x3x3/8
- Weight
- 8.5 lb/ft (+10%)
- Depth
- 3.00 in (-14%)
- Ix
- 3.9 in⁴ (+12%)
Similar weight in L3
L3x2x1/2
- Weight
- 7.7 lb/ft (0.0%)
- Depth
- 2.00 in (-43%)
- Ix
- 1.9 in⁴ (-46%)
Source: AISC Shapes Database v16.0 · Methodology