Steel Beam Sizes / AISC / Angles / L4x3x5/16
L4x3x5/16 Steel Beam Dimensions and Properties
AISC Angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L4x3x5/16 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 | 7.20 lb/ft | 10.70 kg/m |
| Width | 4.00 in | 102.00 mm |
| Height | 3.00 in | 76.20 mm |
| t | 0.313 in | 7.940 mm |
| Area | 2.09 in² | 1,350.00 mm² |
| Ix | 3.36 in⁴ | 1,400,000 mm⁴ |
| Iy | 1.62 in⁴ | 674,000.00 mm⁴ |
| Sx | 1.22 in³ | 20,000.00 mm³ |
| Sy | 0.72 in³ | 11,800.00 mm³ |
| Zx | 2.19 in³ | 35,900.00 mm³ |
| Zy | 1.28 in³ | 21,000.00 mm³ |
| rx | 1.27 in | 32.30 mm |
| ry | 0.88 in | 22.40 mm |
| J | 0.07 in⁴ | 30,400.00 mm⁴ |
| Cw | 0.07 in⁶ | 18,200,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L4x3x5/16.
Lighter in L4
L4x4x1/4
- Weight
- 6.6 lb/ft (-8.3%)
- Depth
- 4.00 in (+33%)
- Ix
- 3.0 in⁴ (-11%)
Heavier in L4
L4x3-1/2x5/16
- Weight
- 7.7 lb/ft (+6.9%)
- Depth
- 3.50 in (+17%)
- Ix
- 3.5 in⁴ (+5.1%)
Closest Iₓ in L4
L4x4x5/16
- Weight
- 8.2 lb/ft (+14%)
- Depth
- 4.00 in (+33%)
- Ix
- 3.7 in⁴ (+9.2%)
Similar weight in L3
L3-1/2x2-1/2x3/8
- Weight
- 7.2 lb/ft (0.0%)
- Depth
- 2.50 in (-17%)
- Ix
- 2.6 in⁴ (-24%)
Source: AISC Shapes Database v16.0 · Methodology