150 x 90 x 8 UA

Unequal Angle · AS/NZS 3679.1 · Australia / New Zealand

150 x 90 x 8 UA is an unequal angle with 150 × 90 mm legs, 7.8 mm thick, weighing 14.3 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.

150 x 90 x 8 UA drawn to scale. Save as SVG DXF

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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	7.8 mm	0.307 in
Mass per metre	14.3 kg/m	9.6 lb/ft
Area, A	1,820 mm²	2.82 in²
Second moment, Ix	4,259,000 mm⁴	10.2 in⁴
Second moment, Iy	1,181,000 mm⁴	2.8 in⁴
Principal maximum, I_max	4,730,000 mm⁴	11.4 in⁴
Principal minimum, I_min	710,000 mm⁴	1.7 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 8 UA the computed area agrees with the published value to 0.10% and I_x to 0.06%. Where a value is also published, the published one above is the one to quote.

Property	Value
Elastic modulus, Z_x	42,275 mm³
Elastic modulus, Z_y	16,766 mm³
Plastic modulus, S_x	76,020 mm³
Plastic modulus, S_y	30,084 mm³
Radius of gyration, rx	48.4 mm
Radius of gyration, ry	25.5 mm
Principal maximum, I_max (derived)	4,733,066 mm⁴
Principal minimum, I_min (derived)	709,578 mm⁴
Principal axis angle, θ_p	20.0°

Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.

Neighbouring sizes

Lighter125 x 75 x 10 UA14.2 kg/m Heavier150 x 90 x 10 UA17.3 kg/m

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