Steel Beam Sizes / Australia / Beam Tees / 90 BT 9
90 BT 9 Steel Beam Dimensions and Properties
ASNZS Tees cut from universal beams · v2019.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
90 BT 9 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 | 6.05 lb/ft | 9.00 kg/m |
| Depth, d | 3.41 in | 86.50 mm |
| Flange width, bf | 3.54 in | 90.00 mm |
| tw | 0.197 in | 5.000 mm |
| tf | 0.315 in | 8.000 mm |
| Area | 1.78 in² | 1,150.00 mm² |
| Ix | 1.64 in⁴ | 684,000.00 mm⁴ |
| Iy | 1.17 in⁴ | 488,000.00 mm⁴ |
| Sx | 0.62 in³ | 10,133.33 mm³ |
| Sy | 0.66 in³ | 10,844.44 mm³ |
| Zx | 1.10 in³ | 18,000.00 mm³ |
| Zy | 1.04 in³ | 17,000.00 mm³ |
| rx | 0.96 in | 24.39 mm |
| ry | 0.81 in | 20.60 mm |
| J | 0.05 in⁴ | 22,400.00 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 90 BT 9.
Lighter in Tees cut from universal beams
75 BT 7
- Weight
- 7.0 kg/m (-22%)
- Depth
- 74.0 mm (-14%)
- Ix
- 410,000 mm⁴ (-40%)
Heavier in Tees cut from universal beams
90 BT 11
- Weight
- 11.0 kg/m (+22%)
- Depth
- 88.5 mm (+2.3%)
- Ix
- 857,000 mm⁴ (+25%)
Closest Iₓ in Tees cut from universal beams
75 BT 9
- Weight
- 9.0 kg/m (0.0%)
- Depth
- 76.5 mm (-12%)
- Ix
- 533,000 mm⁴ (-22%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology