Steel Beam Sizes / Australia / Beam Tees / 155 BT 20
155 BT 20 Dimensions, Weight and Section Properties
ASNZS Tees cut from universal beams · v2019.11
155 BT 20: 151 mm depth, 165.1 mm flange width, 20 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
155 BT 20 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 | 13.44 lb/ft | 20.00 kg/m |
| Depth, d | 5.94 in | 151.00 mm |
| Flange width, bf | 6.50 in | 165.10 mm |
| tw | 0.240 in | 6.100 mm |
| tf | 0.402 in | 10.200 mm |
| Area | 4.00 in² | 2,580.00 mm² |
| Ix | 11.24 in⁴ | 4,680,000 mm⁴ |
| Iy | 9.20 in⁴ | 3,830,000 mm⁴ |
| Sx | 2.37 in³ | 38,773.82 mm³ |
| Sy | 2.83 in³ | 46,396.12 mm³ |
| Zx | 4.15 in³ | 68,000.00 mm³ |
| Zy | 4.33 in³ | 71,000.00 mm³ |
| rx | 1.68 in | 42.59 mm |
| ry | 1.52 in | 38.53 mm |
| J | 0.18 in⁴ | 74,100.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 155 BT 20.
Lighter in Tees cut from universal beams
125 BT 18
- Weight
- 18.0 kg/m (-10.0%)
- Depth
- 127.0 mm (-16%)
- Ix
- 2,900,000 mm⁴ (-38%)
Heavier in Tees cut from universal beams
180 BT 22
- Weight
- 22.0 kg/m (+10.0%)
- Depth
- 175.0 mm (+16%)
- Ix
- 7,790,000 mm⁴ (+66%)
Another Iₓ option in Tees cut from universal beams
155 BT 23
- Weight
- 23.0 kg/m (+15%)
- Depth
- 153.0 mm (+1.3%)
- Ix
- 5,310,000 mm⁴ (+13%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology