Steel Beam Sizes / CISC / Angles / L64×51×7.9
L64×51×7.9 Steel Beam Dimensions and Properties
CISC Angles · v12.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L64×51×7.9 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 | 4.50 lb/ft | 6.70 kg/m |
| Width | 2.00 in | 50.80 mm |
| Height | 2.50 in | 63.50 mm |
| t | 0.313 in | 7.940 mm |
| Area | 1.31 in² | 844.00 mm² |
| Ix | 0.79 in⁴ | 328,000.00 mm⁴ |
| Iy | 0.45 in⁴ | 186,000.00 mm⁴ |
| Sx | 0.47 in³ | 7,640.00 mm³ |
| Sy | 0.31 in³ | 5,080.00 mm³ |
| rx | 0.78 in | 19.70 mm |
| ry | 0.58 in | 14.80 mm |
| J | 0.04 in⁴ | 17,700.00 mm⁴ |
| Cw | 0.02 in⁶ | 4,360,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L64×51×7.9.
Lighter in L64
L64×64×6.4
- Weight
- 6.1 kg/m (-8.9%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 293,000 mm⁴ (-11%)
Heavier in L64
L64×64×7.9
- Weight
- 7.4 kg/m (+11%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 353,000 mm⁴ (+7.6%)
Closest Iₓ in L64
L64×51×9.5
- Weight
- 7.9 kg/m (+18%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 380,000 mm⁴ (+16%)
Similar weight in L76
L76×64×6.4
- Weight
- 6.7 kg/m (0.0%)
- Depth
- 76.2 mm (+20%)
- Ix
- 488,000 mm⁴ (+49%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Check availability with the supplier. · Methodology