StructureCalcs100 x 75 x 6 UA
Unequal Angle · AS/NZS 3679.1 · Australia / New Zealand
100 x 75 x 6 UA is an unequal angle with 100 × 75 mm legs, 6.0 mm thick, weighing 8.0 kg/m. The dimensions below are the published AS/NZS 3679.1 values; the drawing is generated from them.
Unequal Angles put the longer leg where connection or stiffness demands it; like every angle they buckle about tilted principal axes, and the principal pair is published here.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Leg length, d | 100 mm | 3.94 in |
| Second leg, b | 75 mm | 2.95 in |
| Thickness, t | 6.0 mm | 0.236 in |
| Mass per metre | 8.0 kg/m | 5.4 lb/ft |
| Area, A | 1,020 mm² | 1.58 in² |
| Second moment, Ix | 1,021,000 mm⁴ | 2.5 in⁴ |
| Second moment, Iy | 494,000 mm⁴ | 1.2 in⁴ |
| Principal maximum, Imax | 1,250,000 mm⁴ | 3.0 in⁴ |
| Principal minimum, Imin | 265,000 mm⁴ | 0.6 in⁴ |
Derived section properties
Integrated from the section's own outline including the root and toe radii, whose arcs are integrated analytically rather than approximated by facets. For 100 x 75 x 6 UA the computed area agrees with the published value to 0.29% and Ix to 0.01%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 14,643 mm³ |
| Elastic modulus, Zy | 8,666 mm³ |
| Plastic modulus, Sx | 26,910 mm³ |
| Plastic modulus, Sy | 15,661 mm³ |
| Radius of gyration, rx | 31.7 mm |
| Radius of gyration, ry | 22.0 mm |
| Principal maximum, Imax (derived) | 1,249,979 mm⁴ |
| Principal minimum, Imin (derived) | 265,364 mm⁴ |
| Principal axis angle, θp | 28.8° |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 3679.1 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API