Steel Beam Sizes / AISC / HSS Rectangular / HSS 20x6x1/2
HSS 20x6x1/2 Steel Beam Dimensions and Properties
AISC Rectangular HSS · v16.0
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
HSS 20x6x1/2 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 | 82.88 lb/ft | 123.00 kg/m |
| Height | 20.00 in | 508.00 mm |
| Width | 6.00 in | 152.00 mm |
| Nominal tw | 0.500 in | 12.700 mm |
| Design tw | 0.465 in | 11.800 mm |
| Area | 22.80 in² | 14,700.00 mm² |
| Ix | 1,020.00 in⁴ | 425,000,000 mm⁴ |
| Iy | 148.00 in⁴ | 61,600,000 mm⁴ |
| Sx | 102.00 in³ | 1,670,000 mm³ |
| Sy | 49.40 in³ | 810,000.00 mm³ |
| Zx | 134.00 in³ | 2,200,000 mm³ |
| Zy | 55.80 in³ | 914,000.00 mm³ |
| rx | 6.68 in | 170.00 mm |
| ry | 2.55 in | 64.80 mm |
| J | 441.00 in⁴ | 184,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20x6x1/2.
Lighter in Rectangular HSS
HSS 22x16x5/16
- Weight
- 78.6 lb/ft (-5.1%)
- Depth
- 22.00 in (+10%)
- Ix
- 1,550.0 in⁴ (+52%)
Heavier in Rectangular HSS
HSS 12x10x5/8
- Weight
- 84.8 lb/ft (+2.4%)
- Depth
- 12.00 in (-40%)
- Ix
- 472.0 in⁴ (-54%)
Closest Iₓ in Rectangular HSS
HSS 20x12x5/16
- Weight
- 65.9 lb/ft (-21%)
- Depth
- 20.00 in (0.0%)
- Ix
- 1,010.0 in⁴ (-1.0%)
Source: AISC Shapes Database v16.0 · Methodology