UA – unequal-leg angles

150x100x12UA

Standard: AS/NZS 3679.1Source: InfraBuild dimensions, Hot Rolled & Structural Steel Products (ed. 9) — calculated properties
Published area (Ag) shown as a check: difference < 1.5% on every section.
xyb = 100d = 150t = 12t = 12
Cross-section, to scaledimensions in mm

Dimensions

Depthd
150mm
Widthb
100mm
Thicknesst
12mm
Root radiusr1
10mm

Mass and area

Mass per lengthm
22.5kg/m
Cross-sectional areaA
2,867mm²
Published area (standard)A pub.
2,870mm²
Outside perimeterP
491.4mm

Strong axis x–x

Moment of inertiaIx
6.52210⁶ mm⁴
Elastic section modulusSx
64.6410³ mm³
Radius of gyrationrx
47.7mm

Weak axis y–y

Moment of inertiaIy
2.33810⁶ mm⁴
Elastic section modulusSy
30.8910³ mm³
Radius of gyrationry
28.56mm

Principal axes

Moment of inertia, major principal axisIu
7.51410⁶ mm⁴
Moment of inertia, minor principal axisIv
1.34610⁶ mm⁴
Radius of gyrationru
51.2mm
Radius of gyration, minor principal axisrv
21.67mm
Principal axis angleα
23.65°

Torsion and stability

Torsional constantJ
143.710³ mm⁴

Centers

Centroidx̄
24.3mm
Centroidȳ
49.11mm

Equivalents in other standards