Steel Beam Sizes / AISC / HSS Rectangular / HSS 4x3x5/16
HSS 4x3x5/16 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 4x3x5/16 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 | 12.70 lb/ft | 18.80 kg/m |
| Height | 4.00 in | 102.00 mm |
| Width | 3.00 in | 76.20 mm |
| Nominal tw | 0.313 in | 7.940 mm |
| Design tw | 0.291 in | 7.390 mm |
| Area | 3.52 in² | 2,270.00 mm² |
| Ix | 7.14 in⁴ | 2,970,000 mm⁴ |
| Iy | 4.52 in⁴ | 1,880,000 mm⁴ |
| Sx | 3.57 in³ | 58,500.00 mm³ |
| Sy | 3.02 in³ | 49,500.00 mm³ |
| Zx | 4.51 in³ | 73,900.00 mm³ |
| Zy | 3.69 in³ | 60,500.00 mm³ |
| rx | 1.42 in | 36.10 mm |
| ry | 1.13 in | 28.70 mm |
| J | 9.41 in⁴ | 3,920,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 4x3x5/16.
Lighter in Rectangular HSS
HSS 5x3x1/4
- Weight
- 12.2 lb/ft (-3.9%)
- Depth
- 5.00 in (+25%)
- Ix
- 10.7 in⁴ (+50%)
Heavier in Rectangular HSS
HSS 6x5x3/16
- Weight
- 13.3 lb/ft (+4.3%)
- Depth
- 6.00 in (+50%)
- Ix
- 19.3 in⁴ (+170%)
Closest Iₓ in Rectangular HSS
HSS 5x4x1/8
- Weight
- 7.3 lb/ft (-42%)
- Depth
- 5.00 in (+25%)
- Ix
- 7.4 in⁴ (+3.9%)
Source: AISC Shapes Database v16.0 · Methodology