StructureCalcs150 x 90 x 16 UA
Unequal Angle · AS/NZS 3679.1 · Australia / New Zealand
150 x 90 x 16 UA is an unequal angle with 150 × 90 mm legs, 15.8 mm thick, weighing 27.9 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 | 150 mm | 5.91 in |
| Second leg, b | 90 mm | 3.54 in |
| Thickness, t | 15.8 mm | 0.622 in |
| Mass per metre | 27.9 kg/m | 18.7 lb/ft |
| Area, A | 3,550 mm² | 5.50 in² |
| Second moment, Ix | 7,968,000 mm⁴ | 19.1 in⁴ |
| Second moment, Iy | 2,152,000 mm⁴ | 5.2 in⁴ |
| Principal maximum, Imax | 8,800,000 mm⁴ | 21.1 in⁴ |
| Principal minimum, Imin | 1,320,000 mm⁴ | 3.2 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 150 x 90 x 16 UA the computed area agrees with the published value to 0.09% and Ix to better than 0.01%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 81,719 mm³ |
| Elastic modulus, Zy | 31,969 mm³ |
| Plastic modulus, Sx | 145,492 mm³ |
| Plastic modulus, Sy | 59,531 mm³ |
| Radius of gyration, rx | 47.4 mm |
| Radius of gyration, ry | 24.6 mm |
| Principal maximum, Imax (derived) | 8,797,184 mm⁴ |
| Principal minimum, Imin (derived) | 1,323,063 mm⁴ |
| Principal axis angle, θp | 19.5° |
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