Steel Beam Sizes / Australia / CHS / 21×3.6 CHS
21×3.6 CHS Dimensions, Weight and Section Properties
ASNZS Circular hollow sections · v2019.11
21×3.6 CHS: 1.57 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
21×3.6 CHS 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 | 1.05 lb/ft | 1.57 kg/m |
| OD | 0.839 in | 21.300 mm |
| t | 0.142 in | 3.600 mm |
| Area | 0.31 in² | 200.00 mm² |
| Ix | 0.02 in⁴ | 8,160.00 mm⁴ |
| Iy | 0.02 in⁴ | 8,160.00 mm⁴ |
| Sx | 0.05 in³ | 766.20 mm³ |
| Sy | 0.05 in³ | 766.20 mm³ |
| Zx | 0.07 in³ | 1,140.00 mm³ |
| Zy | 0.07 in³ | 1,140.00 mm³ |
| rx | 0.25 in | 6.39 mm |
| ry | 0.25 in | 6.39 mm |
| J | 0.04 in⁴ | 16,300.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 21×3.6 CHS.
Lighter in Circular hollow sections
34×2.0 CHS
- Weight
- 1.6 kg/m (-0.5%)
- Depth
- — mm
- Ix
- 25,100 mm⁴ (+208%)
Heavier in Circular hollow sections
27×3.2 CHS
- Weight
- 1.9 kg/m (+19%)
- Depth
- — mm
- Ix
- 17,000 mm⁴ (+108%)
Another Iₓ option in Circular hollow sections
21×3.2 CHS
- Weight
- 1.4 kg/m (-9.0%)
- Depth
- — mm
- Ix
- 7,680 mm⁴ (-5.9%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology