EA – equal-leg angles

30x30x5EA

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 = 30d = 30t = 4.6t = 4.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
30mm
Widthb
30mm
Thicknesst
4.6mm
Root radiusr1
5mm

Mass and area

Mass per lengthm
2.022kg/m
Cross-sectional areaA
257.5mm²
Published area (standard)A pub.
256mm²
Outside perimeterP
115.7mm

Strong axis x–x

Moment of inertiaIx
0.0202410⁶ mm⁴
Elastic section modulusSx
0.964910³ mm³
Radius of gyrationrx
8.865mm

Weak axis y–y

Moment of inertiaIy
0.0202410⁶ mm⁴
Elastic section modulusSy
0.964910³ mm³
Radius of gyrationry
8.865mm

Principal axes

Moment of inertia, major principal axisIu
0.0319610⁶ mm⁴
Moment of inertia, minor principal axisIv
0.00851910⁶ mm⁴
Radius of gyrationru
11.14mm
Radius of gyration, minor principal axisrv
5.752mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
2.03210³ mm⁴

Centers

Centroidx̄
9.026mm
Centroidȳ
9.026mm

Equivalents in other standards