Steel Beam Sizes / Australia / Unequal Angles / 125×75×12 UA
125×75×12 UA Dimensions, Weight and Section Properties
ASNZS Unequal angles · v2019.11
125×75×12 UA: 125 mm depth, 17.741 kg/m weight. View the full dimensions and properties in imperial and metric units below.
Need this steel supplied or fabricated?
Request project pricing for delivery in the United States or Canada.
Get a steel quote →Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
125×75×12 UA 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 | 11.92 lb/ft | 17.74 kg/m |
| Width | 2.95 in | 75.00 mm |
| Height | 4.92 in | 125.00 mm |
| t | 0.472 in | 12.000 mm |
| Area | 3.50 in² | 2,260.00 mm² |
| Ix | 9.39 in⁴ | 3,910,000 mm⁴ |
| Iy | 1.41 in⁴ | 585,000.00 mm⁴ |
| Zx | 5.05 in³ | 82,700.00 mm³ |
| Zy | 1.82 in³ | 29,900.00 mm³ |
| rx | 1.64 in | 41.59 mm |
| ry | 0.63 in | 16.09 mm |
| J | 0.26 in⁴ | 110,000.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 125×75×12 UA.
Lighter in Unequal angles
150×90×10 UA
- Weight
- 17.3 kg/m (-2.7%)
- Depth
- 150.0 mm (+20%)
- Ix
- 5,660,000 mm⁴ (+45%)
Heavier in Unequal angles
150×100×10 UA
- Weight
- 18.1 kg/m (+1.8%)
- Depth
- 150.0 mm (+20%)
- Ix
- 6,110,000 mm⁴ (+56%)
Another Iₓ option in Unequal angles
125×75×10 UA
- Weight
- 14.2 kg/m (-20%)
- Depth
- 125.0 mm (0.0%)
- Ix
- 3,200,000 mm⁴ (-18%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology