EA – equal-leg angles

125x125x12EA

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 = 125d = 125t = 12t = 12
Cross-section, to scaledimensions in mm

Dimensions

Depthd
125mm
Widthb
125mm
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
4.20810⁶ mm⁴
Elastic section modulusSx
46.9610³ mm³
Radius of gyrationrx
38.31mm

Weak axis y–y

Moment of inertiaIy
4.20810⁶ mm⁴
Elastic section modulusSy
46.9610³ mm³
Radius of gyrationry
38.31mm

Principal axes

Moment of inertia, major principal axisIu
6.68910⁶ mm⁴
Moment of inertia, minor principal axisIv
1.72610⁶ mm⁴
Radius of gyrationru
48.31mm
Radius of gyration, minor principal axisrv
24.54mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
143.710³ mm⁴

Centers

Centroidx̄
35.4mm
Centroidȳ
35.4mm

Equivalents in other standards