Steel Beam Sizes / AISC / HSS Rectangular / HSS 7x4x1/8
HSS 7x4x1/8 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 7x4x1/8 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 | 9.01 lb/ft | 13.40 kg/m |
| Height | 7.00 in | 178.00 mm |
| Width | 4.00 in | 102.00 mm |
| Nominal tw | 0.125 in | 3.180 mm |
| Design tw | 0.116 in | 2.950 mm |
| Area | 2.46 in² | 1,590.00 mm² |
| Ix | 16.60 in⁴ | 6,910,000 mm⁴ |
| Iy | 7.03 in⁴ | 2,930,000 mm⁴ |
| Sx | 4.73 in³ | 77,500.00 mm³ |
| Sy | 3.51 in³ | 57,500.00 mm³ |
| Zx | 5.73 in³ | 93,900.00 mm³ |
| Zy | 3.91 in³ | 64,100.00 mm³ |
| rx | 2.59 in | 65.80 mm |
| ry | 1.69 in | 42.90 mm |
| J | 15.60 in⁴ | 6,490,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 7x4x1/8.
Lighter in Rectangular HSS
HSS 3-1/2x2-1/2x1/4
- Weight
- 8.8 lb/ft (-2.2%)
- Depth
- 3.50 in (-50%)
- Ix
- 3.8 in⁴ (-77%)
Heavier in Rectangular HSS
HSS 5x3x3/16
- Weight
- 9.4 lb/ft (+4.6%)
- Depth
- 5.00 in (-29%)
- Ix
- 8.5 in⁴ (-49%)
Closest Iₓ in Rectangular HSS
HSS 5x3x1/2
- Weight
- 21.6 lb/ft (+140%)
- Depth
- 5.00 in (-29%)
- Ix
- 16.4 in⁴ (-1.2%)
Source: AISC Shapes Database v16.0 · Methodology