Steel Beam Sizes / CISC / Double Angles / 2LL64×51×7.9
2LL64×51×7.9 Steel Beam Dimensions and Properties
CISC Double angles · v12.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
2LL64×51×7.9 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 | 9.00 lb/ft | 13.40 kg/m |
| Width | 2.00 in | 50.80 mm |
| Height | 2.50 in | 63.50 mm |
| t | 0.313 in | 7.940 mm |
| Area | 2.62 in² | 1,690.00 mm² |
| Ix | 1.58 in⁴ | 656,000.00 mm⁴ |
| Sx | 0.93 in³ | 15,300.00 mm³ |
| rx | 0.78 in | 19.70 mm |
| J | 0.09 in⁴ | 35,500.00 mm⁴ |
| Cw | 0.03 in⁶ | 8,720,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2LL64×51×7.9.
Lighter in Double angles
2LE64×64×6.4
- Weight
- 12.2 kg/m (-8.9%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 585,000 mm⁴ (-11%)
Heavier in Double angles
2LE51×51×9.5
- Weight
- 14.0 kg/m (+4.4%)
- Depth
- 50.8 mm (-20%)
- Ix
- 399,000 mm⁴ (-39%)
Closest Iₓ in Double angles
2LS89×64×6.4
- Weight
- 14.6 kg/m (+8.9%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 647,000 mm⁴ (-1.4%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Check availability with the supplier. · Methodology