UA – unequal-leg angles

125x75x10UA

Standard: AS/NZS 3679.1Source: InfraBuild dimensions, Hot Rolled & Structural Steel Products (ed. 9) — calculated properties
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
xyb = 75d = 125t = 9.5t = 9.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
125mm
Widthb
75mm
Thicknesst
9.5mm
Root radiusr1
8mm

Mass and area

Mass per lengthm
14.26kg/m
Cross-sectional areaA
1,817mm²
Published area (standard)A pub.
1,810mm²
Outside perimeterP
393.1mm

Strong axis x–x

Moment of inertiaIx
2.89910⁶ mm⁴
Elastic section modulusSx
35.0610³ mm³
Radius of gyrationrx
39.95mm

Weak axis y–y

Moment of inertiaIy
0.794910⁶ mm⁴
Elastic section modulusSy
13.8310³ mm³
Radius of gyrationry
20.92mm

Principal axes

Moment of inertia, major principal axisIu
3.21410⁶ mm⁴
Moment of inertia, minor principal axisIv
0.480210⁶ mm⁴
Radius of gyrationru
42.06mm
Radius of gyration, minor principal axisrv
16.26mm
Principal axis angleα
19.83°

Torsion and stability

Torsional constantJ
57.0710³ mm⁴

Centers

Centroidx̄
17.51mm
Centroidȳ
42.32mm

Equivalents in other standards