Steel Beam Sizes / Australia / Column Tees / 155 CT 99
155 CT 99 Steel Beam Dimensions and Properties
ASNZS Tees cut from universal columns · v2019.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
155 CT 99 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 | 66.52 lb/ft | 99.00 kg/m |
| Depth, d | 6.65 in | 169.00 mm |
| Flange width, bf | 12.37 in | 314.10 mm |
| tw | 0.756 in | 19.200 mm |
| tf | 1.236 in | 31.400 mm |
| Area | 19.53 in² | 12,600.00 mm² |
| Ix | 47.57 in⁴ | 19,800,000 mm⁴ |
| Iy | 195.08 in⁴ | 81,200,000 mm⁴ |
| Sx | 8.92 in³ | 146,233.38 mm³ |
| Sy | 31.55 in³ | 517,032.79 mm³ |
| Zx | 18.00 in³ | 295,000.00 mm³ |
| Zy | 48.21 in³ | 790,000.00 mm³ |
| rx | 1.56 in | 39.64 mm |
| ry | 3.16 in | 80.28 mm |
| J | 8.79 in⁴ | 3,660,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 155 CT 99.
Lighter in Tees cut from universal columns
155 CT 79
- Weight
- 79.0 kg/m (-20%)
- Depth
- 163.0 mm (-3.6%)
- Ix
- 15,000,000 mm⁴ (-24%)
Heavier in Tees cut from universal columns
155 CT 120
- Weight
- 120.0 kg/m (+21%)
- Depth
- 175.0 mm (+3.6%)
- Ix
- 25,600,000 mm⁴ (+29%)
Closest Iₓ in Tees cut from universal columns
155 CT 68
- Weight
- 68.0 kg/m (-31%)
- Depth
- 159.0 mm (-5.9%)
- Ix
- 12,600,000 mm⁴ (-36%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology