Steel Beam Sizes / AISC / HSS Rectangular / HSS 18x6x5/8
HSS 18x6x5/8 Dimensions, Weight and Section Properties
AISC Rectangular HSS · v16.0
HSS 18x6x5/8: 93.34 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
HSS 18x6x5/8 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 | 93.34 lb/ft | 139.00 kg/m |
| Height | 18.00 in | 457.00 mm |
| Width | 6.00 in | 152.00 mm |
| Nominal tw | 0.625 in | 15.900 mm |
| Design tw | 0.581 in | 14.800 mm |
| Area | 25.70 in² | 16,600.00 mm² |
| Ix | 923.00 in⁴ | 384,000,000 mm⁴ |
| Iy | 158.00 in⁴ | 65,800,000 mm⁴ |
| Sx | 103.00 in³ | 1,690,000 mm³ |
| Sy | 52.70 in³ | 864,000.00 mm³ |
| Zx | 135.00 in³ | 2,210,000 mm³ |
| Zy | 61.00 in³ | 1,000,000 mm³ |
| rx | 6.00 in | 152.00 mm |
| ry | 2.48 in | 63.00 mm |
| J | 462.00 in⁴ | 192,000,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus HSS 18x6x5/8.
Lighter in Rectangular HSS
HSS 24x20x5/16
- Weight
- 91.4 lb/ft (-2.1%)
- Depth
- 24.00 in (+33%)
- Ix
- 2,230.0 in⁴ (+142%)
Heavier in Rectangular HSS
HSS 22x16x3/8
- Weight
- 93.8 lb/ft (+0.5%)
- Depth
- 22.00 in (+22%)
- Ix
- 1,830.0 in⁴ (+98%)
Another Iₓ option in Rectangular HSS
HSS 22x10x1/4
- Weight
- 53.1 lb/ft (-43%)
- Depth
- 22.00 in (+22%)
- Ix
- 923.0 in⁴ (0.0%)
Source: AISC Shapes Database v16.0 · Methodology