Steel Beam Sizes / AISC / Double Angles / 2L5x3-1/2x5/16LLBB
2L5x3-1/2x5/16LLBB Steel Beam Dimensions and Properties
AISC Double angles · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
2L5x3-1/2x5/16LLBB 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 | 17.40 lb/ft | 25.80 kg/m |
| Width | 3.50 in | 88.90 mm |
| Height | 5.00 in | 127.00 mm |
| t | 0.313 in | 7.940 mm |
| Area | 5.12 in² | 3,300.00 mm² |
| Ix | 13.20 in⁴ | 5,490,000 mm⁴ |
| Sx | 3.84 in³ | 62,900.00 mm³ |
| rx | 1.60 in | 40.60 mm |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2L5x3-1/2x5/16LLBB.
Lighter in Double angles
2L3-1/2x3-1/2x3/8
- Weight
- 17.0 lb/ft (-2.3%)
- Depth
- 3.50 in (-30%)
- Ix
- 5.7 in⁴ (-57%)
Heavier in Double angles
2L3-1/2x3x7/16LLBB
- Weight
- 18.2 lb/ft (+4.6%)
- Depth
- 3.50 in (-30%)
- Ix
- 6.2 in⁴ (-53%)
Closest Iₓ in Double angles
2L4x4x5/8
- Weight
- 31.4 lb/ft (+80%)
- Depth
- 4.00 in (-20%)
- Ix
- 13.2 in⁴ (0.0%)
Source: AISC Shapes Database v16.0 · Methodology