Steel Beam Sizes / Australia / Column Tees / 75 CT 18
75 CT 18 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
75 CT 18 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 | 12.10 lb/ft | 18.00 kg/m |
| Depth, d | 3.15 in | 80.00 mm |
| Flange width, bf | 6.08 in | 154.40 mm |
| tw | 0.320 in | 8.130 mm |
| tf | 0.453 in | 11.500 mm |
| Area | 3.66 in² | 2,360.00 mm² |
| Ix | 2.19 in⁴ | 912,000.00 mm⁴ |
| Iy | 8.48 in⁴ | 3,530,000 mm⁴ |
| Sx | 0.86 in³ | 14,095.83 mm³ |
| Sy | 2.79 in³ | 45,725.39 mm³ |
| Zx | 1.64 in³ | 26,900.00 mm³ |
| Zy | 4.27 in³ | 70,000.00 mm³ |
| rx | 0.77 in | 19.66 mm |
| ry | 1.52 in | 38.68 mm |
| J | 0.23 in⁴ | 96,000.00 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 75 CT 18.
Lighter in Tees cut from universal columns
75 CT 15
- Weight
- 15.0 kg/m (-17%)
- Depth
- 78.0 mm (-2.5%)
- Ix
- 701,000 mm⁴ (-23%)
Heavier in Tees cut from universal columns
100 CT 23
- Weight
- 23.0 kg/m (+28%)
- Depth
- 101.0 mm (+26%)
- Ix
- 1,750,000 mm⁴ (+92%)
Closest Iₓ in Tees cut from universal columns
75 CT 12
- Weight
- 12.0 kg/m (-33%)
- Depth
- 75.0 mm (-6.2%)
- Ix
- 588,000 mm⁴ (-36%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology