Steel Beam Sizes / CISC / Angles / L64×64×7.9
L64×64×7.9 Steel Beam Dimensions and Properties
CISC Angles · v12.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
L64×64×7.9 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 | 5.00 lb/ft | 7.40 kg/m |
| Width | 2.50 in | 63.50 mm |
| Height | 2.50 in | 63.50 mm |
| t | 0.313 in | 7.940 mm |
| Area | 1.46 in² | 945.00 mm² |
| Ix | 0.85 in⁴ | 353,000.00 mm⁴ |
| Iy | 0.85 in⁴ | 353,000.00 mm⁴ |
| Sx | 0.48 in³ | 7,900.00 mm³ |
| Sy | 0.48 in³ | 7,900.00 mm³ |
| rx | 0.76 in | 19.30 mm |
| ry | 0.76 in | 19.30 mm |
| J | 0.05 in⁴ | 19,900.00 mm⁴ |
| Cw | 0.02 in⁶ | 5,870,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L64×64×7.9.
Lighter in L64
L64×51×7.9
- Weight
- 6.7 kg/m (-10%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 328,000 mm⁴ (-7.1%)
Heavier in L64
L64×51×9.5
- Weight
- 7.9 kg/m (+6.0%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 380,000 mm⁴ (+7.6%)
Closest Iₓ in L64
L64×64×9.5
- Weight
- 8.7 kg/m (+18%)
- Depth
- 63.5 mm (0.0%)
- Ix
- 410,000 mm⁴ (+16%)
Similar weight in L76
L76×51×7.9
- Weight
- 7.4 kg/m (0.0%)
- Depth
- 76.2 mm (+20%)
- Ix
- 548,000 mm⁴ (+55%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Methodology