Steel Beam Sizes / CISC / HSS Square / HS102×102×7.9
HS102×102×7.9 Dimensions, Weight and Section Properties
CISC Square HSS · v12.1
HS102×102×7.9: 22.1 kg/m weight. View the full dimensions and properties in imperial and metric units below.
Need this steel supplied or fabricated?
Request project pricing for delivery in the United States or Canada.
Get a steel quote →Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HS102×102×7.9 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 | 14.90 lb/ft | 22.10 kg/m |
| Height | 4.00 in | 101.60 mm |
| Width | 4.00 in | 101.60 mm |
| Nominal tw | 0.313 in | 7.940 mm |
| Design tw | 0.313 in | 7.940 mm |
| Area | 4.36 in² | 2,810.00 mm² |
| Ix | 9.59 in⁴ | 3,990,000 mm⁴ |
| Iy | 9.59 in⁴ | 3,990,000 mm⁴ |
| Sx | 4.79 in³ | 78,500.00 mm³ |
| Sy | 4.79 in³ | 78,500.00 mm³ |
| Zx | 5.90 in³ | 96,700.00 mm³ |
| Zy | 5.90 in³ | 96,700.00 mm³ |
| rx | 1.48 in | 37.70 mm |
| ry | 1.48 in | 37.70 mm |
| J | 16.12 in⁴ | 6,710,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus HS102×102×7.9.
Lighter in Square HSS
HA89×89×9.5
- Weight
- 21.9 kg/m (-1.3%)
- Depth
- 88.9 mm (-13%)
- Ix
- 2,650,000 mm⁴ (-34%)
Heavier in Square HSS
HA127×127×6.4
- Weight
- 23.2 kg/m (+4.7%)
- Depth
- 127.0 mm (+25%)
- Ix
- 6,490,000 mm⁴ (+63%)
Another Iₓ option in Square HSS
HS127×127×3.2
- Weight
- 12.2 kg/m (-45%)
- Depth
- 127.0 mm (+25%)
- Ix
- 3,920,000 mm⁴ (-1.8%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology